12-Letter Words Starting with P

All 434 twelve-letter words that start with P: page 1 of 2

PA

• pacification21n. The process of pacifying.
• packinghouse24n. A facility where harvested food is processed into a salable condition.
• palatability19n. The condition of being palatable.
• paleobiology20n. The branch of biology or paleontology concerned with the study of...
• paleoclimate18n. The climate of the Earth at a specified point in geologic time.
• paleoecology20n. The ecology of the ancient past and of extinct organisms.
• paleontology18n. The study of the forms of life existing in prehistoric or geologic...
• paliperidone17n. 9-hydroxyrisperidone, an atypical antipsychotic drug.
• panchromatic23adj. Sensitive to all visible colours.
• pancreatitis16n. Inflammation of the pancreas.
• pancytopenia21n. A reduction in the numbers of red blood cells, white blood cells and...
• panniculitis16n. Inflammation of the panniculus adiposus, or subcutaneous adipose tissue.
• pansexuality24n. A sexual orientation characterized by the potential for aesthetic...
• pantoprazole25n. A benzimidazole derivative (trademark Protonix) that inhibits gastric...
• pantothenate17n. Any salt or ester of pantothenic acid.
• paracellular16adj. Between cells.
• paracentesis16n. A medical procedure involving needle drainage of fluid from a body...
• paradigmatic20adj. Of or pertaining to a paradigm.
• paradisiacal17adj. Of or resembling paradise.
• paragraphing21n. A division into paragraphs.
• paramagnetic19adj. Exhibiting paramagnetism.
• paramedicine19n. That field of medicine practiced by paramedics.
• parameterize25v. To describe in terms of parameters.
• parametrized26adj. Furnished with, or described in terms of, parameters; using...
• paramilitary19n. A group of civilians trained and organized in a military fashion, but...
• paraphrasing20n. A paraphrased statement.
• paraphyletic24adj. Of a defined group of taxa: not including all descendants of the most...
• parasagittal15adj. Situated alongside of or adjacent to a sagittal location or a sagittal...
• parasitology18n. The study of parasites.
• parenterally17adv. In a parenteral manner (administered avoiding the gastrointestinal...
• parkinsonian18adj. Relating to, or appearing to be caused by, Parkinson's syndrome.
• parkinsonism20n. A neurological syndrome characterized by tremor, bradykinesia...
• parochialism21n. The quality or state of being parochial; especially: selfish pettiness...
• parsimonious16adj. Exhibiting parsimony; sparing in the expenditure of money; frugal...
• participator18n. One who participates, a participant.
• particularly19adv. Especially, extremely.
• partisanship19n. An inclination to be partisan or biased; partiality.
• partitioning15n. The act or result of dividing into partitions; an arrangement of...
• passionately17adv. In a passionate manner.
• pathbreaking24adj. Opening a new path or approach.
• pathetically22adv. In a pathetic manner; piteously.
• pathobiology23n. The branch of biology that deals with pathology with greater emphasis...
• pathogenesis18n. The origin and development of a disease.
• pathogenetic20adj. Of, pertaining to, or causing pathogenesis.
• pathological20adj. Pertaining to pathology.
• patriarchate19n. A patriarchal system or community.
• patternmaker20n. A tradesperson who makes wooden patterns from which sand molds for sand...

PE

• peacefulness19n. The state of being peaceful.
• peacekeeping23n. The act of preserving peace, specifically between hostile groups or...
• pedantically20adv. In a pedantic manner.
• pediatrician17n. A physician that specializes in pediatrics; the medical care of...
• pejoratively27adv. In a pejorative manner. Insultingly, disparagingly; so as to belittle...
• penalization23n. The act of punishing; punishment.
• penetrometer16n. A mechanical device that measures the ease of penetration of an object...
• penitentiary17n. A state or federal prison for convicted felons; (loosely) a prison.
• pentahydrate21n. A hydrate whose solid contains five molecules of water of...
• pentapeptide19n. An oligopeptide formed from five amino acids.
• pentateuchal19adj. Of or pertaining to the Pentateuch, also known as the Torah.
• peradventure18n. Chance, doubt or uncertainty.
• peraluminous16adj. Describing igneous rocks that have a higher molar proportion of...
• perambulator18n. A baby carriage.
• perceptional18adj. Of, pertaining to, or stimulated by perception.
• perceptively24adv. In a perceptive manner.
• perceptually21adv. In a perceptual manner.
• percutaneous16adj. Taking place through the skin and involving a puncture thereof.
• peremptorily21adv. In a peremptory manner; in a commanding tone, brooking no delay.
• perfidiously21adv. In a perfidious manner.
• performative22adj. Being enacted as it is said.
• perfusionist17n. A trained clinician who operates the heart-lung machine during cardiac...
• pericarditis17n. Inflammation of the pericardium, the membrane that surrounds the heart.
• pericellular16adj. Surrounding a cell.
• perinatology18n. A branch of obstetrics focusing on the medical and surgical management...
• periodically20adv. In a manner that is regular or periodic.
• periodontics17n. The study of supporting structures of teeth, including the gums...
• periodontist15n. A dentist whose speciality is periodontics.
• periodontium17n. The specialized tissues that both surround and support the teeth...
• periostracum18n. The proteinaceous outer sheath of many molluscan shells.
• peripatetics18n. Instruction by means of lectures.
• peripherally22adv. In a peripheral manner.
• periphrastic21adj. Expressed in more words than are necessary.
• perivascular19adj. Around or surrounding a blood vessel.
• permaculture18n. Any system of sustainable agriculture that renews natural resources and...
• permanganate17n. Any salt of permanganic acid: they are purple crystalline solids...
• permeability21n. The property of being permeable.
• permissioned17adj. Having permission.
• permissively22adv. In a permissive manner.
• permittivity22n. A property of a dielectric medium that determines the forces that...
• perniciously19adv. In a pernicious manner.
• peroxidation22n. Any oxidation reaction, especially of an oxide, that produces a...
• perpetration16n. The act of perpetrating.
• perpetuation16n. The act of prolonging existence, of keeping something alive or active.
• perphenazine28n. A potent anti-psychotic drug.
• perplexingly27adv. In a way or to an extent that is perplexing.
• perseverance19n. Continuing in a course of action without regard to discouragement...
• persistently17adv. In a persistent manner.
• personalized24adj. Adapted to the needs of an individual.
• personifying21n. Personification.
• perspectival21adj. Of or pertaining to perspective.
• perspicacity23n. Acute discernment or understanding; insight.
• perspiration16n. The action or process of perspiring.
• persuasively20adv. In a manner intended to convince or persuade.
• pertinacious16adj. Holding tenaciously to an opinion or purpose.
• perturbation16n. Agitation; the state of being perturbed.
• perturbative19adj. Of, pertaining to, or causing perturbation.
• pestilential14adj. Producing, spreading, promoting or infected with pestilence; causing...
• petrifaction19n. Petrification.
• petrodollars15n. Money earned through the sale of petroleum.
• petrogenesis15n. Rock formation, especially the formation of igneous or metamorphic...
• petrographic22adj. Relating to petrographs.
• petrological17adj. Of or pertaining to petrology, the study of rock formation and...
• pettifogging20n. Pettifoggery.

PH

• phagocytosed24adj. Engulfed and ingested as a result of phagocytosis.
• phagocytosis23n. A form of endocytosis in which a cell incorporates a particle by...
• phalaenopsis19n. Any of the genus Phalaenopsis of moth orchids.
• phalloplasty22n. Plastic surgery to construct or repair a penis, performed to repair...
• pharmacology25n. The science of drugs, including their origin, composition...
• phenanthrene20n. A tricyclic aromatic hydrocarbon obtained from coal tar; used in the...
• phenological20adj. Of or pertaining to phenology.
• phenomenally22adv. In a manner that is extraordinary or amazing.
• phenotypical24adj. Of or pertaining to a phenotype.
• phentolamine19n. A synthetic compound used as a vasodilator, especially in certain cases...
• phenylacetic24adj. Of or pertaining to phenylacetic acid or its derivatives.
• philadelphus23n. Any of the genus Philadelphus of shrubs.
• philandering19n. The action of one who philanders.
• philanthropy25n. Benevolent altruism with the intention of increasing the well-being of...
• philharmonic24adj. Appreciative of music, but especially to its performance; devoted to...
• philistinism19n. A materialistic attitude accompanied by ignorance of artistic or...
• philodendron19n. Any of several climbing plants, of the genus Philodendron, native to...
• philological20adj. Of or pertaining to the history of literature and words.
• philosophize31v. To ponder or reason out philosophically.
• phlebotomist21n. A practitioner of phlebotomy.
• phonemically24adv. By means of, or in terms, of phonemes.
• phonetically22adv. In the way it sounds, particularly: written to describe the sound...
• phonographic25adj. Of or relating to phonography or to a phonograph.
• phonological20adj. Of or relating to phonology.
• phonotactics21n. A branch of phonology that deals with the restrictions a language...
• phosphatidic25adj. Of or pertaining to a phosphatide.
• phosphatidyl26n. A radical derived from a phosphatide.
• phospholipid25n. Any lipid, such as lecithin or cephalin, consisting of a diglyceride...
• photobiology23n. The study of the effects of light on living organisms, and on...
• photobombing24n. The practice or phenomenon of making an unexpected appearance in a...
• photocathode23n. A cathode that emits electrons when exposed to light.
• photochromic26adj. Of, related to, or produced by photochromism.
• photocopying25n. The process by which photocopies are made.
• photocurrent19n. Any electric current that flows as a result of photoconductivity or the...
• photodynamic25adj. Of, relating to, or caused by the energy or momentum of light or other...
• photoexcited27adj. (of an atom, molecule or ion) excited due to photoexcitation.
• photographer23n. One who takes photographs, typically as an occupation.
• photographic25adj. Pertaining to photographs or photography.
• photogravure21n. An intaglio process for printing photographic reproductions in...
• photoinduced21adj. Induced as a result of interaction with electromagnetic radiation in...
• photomontage20n. A composite image combining two or more photographs.
• photophysics27n. The physics of light, especially of its interaction with matter.
• photopolymer24n. Any polymer that reacts to light with a physical or chemical change...
• photorealism19n. An extremely realistic style distinguished by paintings, drawings, etc....
• photoshopped25adj. Of an image, digitally edited or altered.
• photospheric24adj. Of, relating to, or occurring in the photosphere.
• phototherapy25n. The use of light to treat disorders of the skin, and certain mood...
• photothermal22adj. Involving the production of heat by photoexcitation.
• phototrophic24adj. That exhibits phototrophy.
• phototropism21n. The movement of a plant towards or away from light.
• photovoltaic22adj. Producing a voltage when exposed to light.
• phrenologist18n. An adherent or practitioner of phrenology.
• phycological25adj. Of or pertaining to the scientific study of algae.
• phyllosphere25n. The above-ground surface of plants, viewed as a habitat for...
• phylogenetic23adj. Of, or relating to phylogeny or phylogenetics.
• phylogenomic25adj. Of or pertaining to phylogenomics.
• physiocratic24adj. Of or relating to the physiocrats.
• physiognomic25adj. Of or pertaining to physiognomy.
• physiography29n. The subfield of geography that studies physical patterns and processes...
• physiologist21n. A person who studies or specializes in physiology.
• phytohormone25n. A plant hormone.
• phytophagous26adj. Feeding on plants, herbivorous.
• phytophthora28n. Any of many parasitic pseudofungi, of the genus Phytophthora, that...
• phytotherapy28n. The use of plant extracts for medical purposes.

PI

• picoplankton22n. The plankton composed of cells between 0.2 and 2 micrometers.
• picornavirus19n. Any of the family Picornaviridae of RNA viruses, many of which are...
• pictographic24adj. Represented by pictures.
• pictorialism18n. A school of artistic photography that emphasized using photography to...
• pictorialist16n. An artist working in the style of pictorialism.
• picturephone21n. Videophone.
• piezoceramic29n. Any ceramic material suitable for use with piezoelectricity.
• pigeonholing19n. The classification of disparate entities into narrow and often unfair...
• piggybacking28n. Riding on someone else's back.
• pigmentation17n. Coloration of human, plant or animal tissue, especially by pigment.
• pimecrolimus20n. An immunomodulating agent used in the treatment of atopic dermatitis.
• pioglitazone24n. A thiazolidinedione derivative taken orally in the form of its...
• piperacillin18n. A particular ureidopenicillin antibiotic.
• pisciculture18n. The rearing or cultivation of fish.

PL

• placentation16n. The local fusion of the embryonic stage of an animal to its parent for...
• plagiarizing25n. Synonym of plagiarism.
• plainclothes19adj. Of a police officer, wearing ordinary civilian clothes instead of a...
• planeswalker21n. A wizard who can travel across planes of existence.
• planetesimal16n. Any of many small, solid astronomical objects that orbit a star and...
• plasmacytoid22adj. Of or pertaining to plasma cells.
• plasmacytoma23n. A malignant tumour of plasmacytes.
• plasmasphere21n. The inner region of the magnetosphere, containing relatively cold...
• plasterboard17n. A construction material consisting of a rigid panel of several layers...
• plastination14n. A technique for preserving bodies or body parts by replacing the water...
• platonically19adv. In a platonic manner.
• plausibility19n. A plausible statement, argument etc.
• pleasantness14n. The state or quality of being pleasant.
• pleasantries14n. A short polite conversation before a serious conversation.
• pleasuredome17n. A place where one can relax, entertain or recreate.
• pleomorphism23n. The occurrence of multiple structural forms during the life cycle of an...
• plesiosaurus14n. Any of the genus †Plesiosaurus of extinct long-necked marine reptiles...
• plurilateral14adj. Involving several parties.
• pluripotency21n. The state of being pluripotent.

PN

• pneumatology20n. The study of spiritual beings and phenomena, especially the...
• pneumococcal22adj. Of, pertaining to or caused by a pneumococcus bacterium.
• pneumococcus22n. A gram-positive bacterium, Streptococcus pneumoniae, that causes...
• pneumocystis21n. A parasitic fungal organism of the genus Pneumocystis, in humans...
• pneumothorax26n. Presence of air inside the pleural cavity, usually caused by injury...

PO

• polarimetric18adj. Of or pertaining to polarimetry, or measured using a polarimeter.
• polarization23n. The production or the condition of polarity.
• policyholder23n. The party to an insurance contract who owns the policy and thus...
• policymaking26n. The formulation of policies.
• polyacrylate22n. Any polymer of acrylic acid or its esters or salts.
• polyangiitis18n. Inflammation of multiple blood vessels or lymph vessels.
• polyaromatic21adj. Containing more than one aromatic ring system, especially several such...
• polybutylene22n. Polybutene.
• polycythemia27n. A rare disorder in which the bone marrow produces an abnormally large...
• polyethylene23n. A polymer consisting of many ethylene monomers bonded together; used...
• polyisoprene19n. Any polymer whose constituent monomer is isoprene; especially natural...
• polymerizing29adj. That polymerizes.
• polymetallic21adj. Composed of multiple metals.
• polymorphism26n. The ability to assume different forms or shapes.
• polymorphous24adj. Having, or assuming, a variety of forms, characters, or styles.
• polymyositis22n. An inflammatory disease affecting multiple muscles.
• polynomially22adv. In a polynomial way.
• polyomavirus22n. Any of the papovaviruses, in family Polyomaviridae, that induce a wide...
• polypharmacy29n. The use of multiple drugs to treat multiple concurrent disorders in the...
• polyphenolic24adj. Of, or relating to the polyphenols.
• polyphyletic27adj. Having multiple ancestral sources; referring to a taxon that does not...
• polyrhythmic30adj. Having multiple, simultaneous rhythms.
• polysiloxane24n. Any of many polymers having a siloxane repeat unit.
• polysyllabic24adj. Having more than one syllable; having multiple or many syllables.
• polytechnics24n. The science of the mechanic arts.
• polytheistic22adj. Of or relating to polytheism.
• polyurethane20n. Any of various polymeric resins containing urethane links; used in many...
• portentously17adv. In an ominous manner.
• posaconazole25n. A triazole antifungal drug used to treat invasive infections in...
• positionable16adj. Capable of being positioned.
• positionally17adv. In a positional context; in terms of position.
• positiveness17n. The quality of being positive; positivity.
• positivistic19adj. Of or pertaining to positivism.
• possessively20adv. In a possessive manner.
• postcolonial16adj. Following the end of colonial rule.
• postdoctoral17adj. After receiving a doctorate; especially of academic research or study...
• postelection16adj. Occurring after an election.
• postfeminist19adj. Pertaining to postfeminism.
• postgraduate16n. A person continuing to study in a field after having successfully...
• postherpetic21adj. Following infection with herpes.
• posthumanism21n. Any of various schools of thought that oppose the earlier humanism.
• posthumously22adv. After death.
• posthypnotic24adj. After being hypnotized.
• postmistress16n. A female postmaster.
• postponement18n. A delay, as a formal delay in a proceeding.
• postposition16n. A word that has the same purpose as a preposition but comes after the...
• postpositive19adj. Placed after the word modified, either immediately after, as in two men...
• postprandial17adj. After a meal, especially after dinner.
• postsurgical17adj. Relating to the period following surgery.
• postsynaptic21adj. In a synapse, of or pertaining to the neuron that bears receptors for...
• potentiality17n. The quality of being or having potential.
• potentiation14n. The synergistic effect of two drugs given simultaneously.
• powerboating20n. The act of travelling in a powerboat.
• powerfulness20n. The quality of being powerful.
• powerlifting21n. A strength sport, consisting of three events: the squat, the bench...
• powersharing21n. The sharing of power, especially political power between two or more...

PR

• practicality21n. The state of being practical or feasible.
• practitioner16n. A person who practices a profession or art, especially law or medicine.
• praiseworthy23adj. Meriting praise; worthy of high praise.
• praseodymium22n. A chemical element (symbol Pr) with an atomic number of 59, a soft...
• praziquantel32n. An anthelmintic medication used to treat a number of types of parasitic...
• preamplifier21n. A voltage amplifier for amplifying a low-level input signal; its output...
• preassembled19adj. Assembled beforehand, especially at a manufacturing plant.
• precancerous18adj. Of or pertaining to growth that is likely to develop into cancer.
• precariously19adv. In a precarious manner; dangerously.
• precedential17adj. Having the force of precedent.
• precessional16adj. Of or pertaining to precession.
• preciousness16n. The state or condition of being precious.
• precipitable20adj. Able to form a precipitate.
• precipitated19adj. Hastened; hurried.
• precipitator18n. One who or that which precipitates (causes something to happen or urges...
• precisionist16n. One who values precision.
• preclearance18n. A procedure to arrange for clearing customs or immigration in advance.
• precociously21adv. In a precocious manner.
• precognition17n. Knowledge of the future; understanding of something in advance...
• precognitive20adj. Pertaining to the ability to see or predict future events.
• preconceived22adj. Conceived beforehand: formed ahead of time.
• precondition17n. A condition that requires satisfaction before taking a course of action.
• preconscious18adj. Prior to consciousness.
• predestinate15v. To predestine.
• predetermine17v. To determine or decide in advance.
• predictively23adv. In the manner of something that attempts to or succeeds in predicting...
• predilection17n. A condition of favoring or liking; a tendency towards; proclivity...
• prednisolone15n. A synthetic glucocorticoid C₂₁H₂₈O₅ that is a dehydrogenated analog of...
• predominance19n. The condition or state of being predominant; ascendancy, domination...
• preeclampsia20n. A multisystem pregnancy disorder, defined by hypertension arising after...
• preeminently19adv. In a preeminent manner.
• preemptively24adv. In a preemptive manner.
• preexistence23n. The condition of having existed prior to the current time.
• preferential17adj. Of or relating to the showing or giving of preference.
• preformatted20adj. Formatted in advance.
• pregnenolone15n. A steroid prohormone involved in the steroidogenesis of progesterone...
• prelapsarian16adj. Of, or relating to the period of innocence before the Fall of man...
• premalignant17adj. Precancerous.
• premaxillary26adj. Of or pertaining to the premaxillae.
• premeditated18adj. Planned, considered, or estimated in advance; deliberate.
• premenstrual16adj. Occurring in the time period during the menstrual cycle leading up to...
• preoperative19adj. Prior to surgery.
• preparedness17n. The state of being prepared.
• preponderant17adj. Having greater or the greatest weight, quantity, importance or force.
• preponderate17v. To outweigh; to be heavier than; to exceed in weight.
• preposterous16adj. Absurd, or contrary to common sense.
• prepregnancy22adj. Before the onset of pregnancy.
• preprocessor18n. Program that processes its input data to produce output that is used as...
• prepubescent20adj. Before the age at which a person begins puberty.
• prerequisite23adj. Required as a prior condition of something else; necessary or...
• presbyterial19adj. Presbyterian.
• presbyterian19adj. Of or pertaining to a presbyter, or to ecclesiastical government by...
• prescreening17n. A screening for problems in advance.
• prescription18n. A written order from an authorized medical practitioner for provision...
• prescriptive21adj. Of or pertaining to prescribing or enjoining, especially an action or...
• preselection16n. The process by which a candidate for public office is selected, usually...
• presentation14n. The act of presenting, or something presented.
• presenteeism16n. The fact of being present at work, especially if one is too sick to be...
• presentiment16n. A premonition; a feeling that something, often of undesirable nature...
• preservation17n. The act of preserving; care to preserve; act of keeping from...
• preservative20n. Any agent, natural or artificial, that acts to preserve, especially...
• presidential15adj. Pertaining to a president or presidency.
• prespecified22adj. Specified in advance.
• presumptuous18adj. Making unwarranted presumptions or assumptions, often out of arrogance...
• presupposing19adj. That presupposes.
• pretreatment16adj. Prior to treatment.
• preventively23adv. In a preventive way.
• prevertebral19adj. Situated immediately in front of, or on the ventral side, of the...
• primordially20adv. In a primordial manner.
• principality21n. A region or sovereign nation headed by a prince or princess.
• printability19n. The state or condition of being printable, or of being a suitable ink...
• privatdozent27n. In some European countries, an academic who holds all formal...
• privateering18n. The operations of a privateer, attacking and looting enemy ships under...
• prizefighter30n. A professional boxer.
• prizewinning27adj. Having won at least one prize.
• proapoptotic20adj. That leads to apoptosis.
• probationary19adj. Of, pertaining to, or subject to probation.
• problematize27v. To make something into a problem.
• procainamide19n. A base of an amide related to procaine (trademark Pronestyl) that is...
• procedurally20adv. According to a procedure; following a procedure.
• processional16adj. Of, pertaining to, or used during a procession, particularly at the...
• proclamation18n. A statement which is proclaimed; formal a public announcement.
• procoagulant17n. Any of various precursors of the blood factors necessary for...
• proctologist17n. A doctor specializing in the colon, rectum, and anus; an expert in...
• prodigiously19adv. In a prodigious manner; astonishingly, enormously, impressively...
• productively23adv. In a productive manner.
• productivist20adj. Of or pertaining to productivism.
• productivity23n. The state of being productive, fertile, or efficient.
• professional17n. A person who belongs to a profession.
• professorial17adj. Of, relating to, or characteristic of a professor or professors, or of...
• proficiently22adv. In a proficient manner.
• profiteering18n. The act of making an unreasonable profit not justified by the...
• profoundness18n. The quality of being profound; profundity.
• progesterone15n. A steroid hormone, secreted by the ovaries, whose function is to...
• programmable21adj. Capable of being programmed.
• programmatic21adj. Of, relating to, or using a step-by-step program—especially a computer...
• prolactinoma18n. A benign tumour (adenoma) of the pituitary gland.
• proliferator17n. Any agent that causes proliferation.
• prolifically22adv. In a prolific manner, or to a prolific extent; abundantly.
• prolongation15n. The act of prolonging.
• prometaphase21n. The stage between prophase and metaphase in mitosis.
• promethazine28n. A first-generation H₁ receptor antagonist derived from phenothiazine...
• promulgation17n. The act of promulgating or announcing something, especially a...
• pronouncedly20adv. In a pronounced manner; markedly, distinctively.
• proofreading19n. The act or process by which a document is proofread.
• propaedeutic19adj. Preparatory or introductory.
• propagandist18n. A person who disseminates propaganda.
• propagandize27v. To use or spread propaganda.
• prophylactic26n. A medicine which preserves or defends against disease; a preventive.
• propitiation16n. The act of propitiating; placation, atonement, similar to expiation but...
• propitiatory19adj. Intended to propitiate, reconcile, expiate or appease; conciliatory.
• proportional16adj. At a constant ratio (to). Two magnitudes (numbers) are said to be...
• proportioned17adj. Having a proportion.
• propoxyphene31n. Dextropropoxyphene.
• proprietress16n. A female proprietor.
• proscription18n. A prohibition.
• proscriptive21adj. Proscribing or prohibiting, for example as according to a norm or...
• prosecutable18adj. Able to be prosecuted.
• prosperously19adv. In a prosperous manner; so as to prosper.
• prostacyclin21n. A prostaglandin produced in the walls of blood vessels; it acts as a...
• protactinium18n. A chemical element (symbol Pa) with atomic number 91. A dense...
• protectively22adv. In a protective manner.
• protectorate16n. Government by a protector; especially, The Protectorate: government of...
• proteoglycan20n. Any of many glycoproteins that have heteropolysaccharide side chains.
• protestation14n. A formal solemn objection or other declaration.
• prothonotary20n. One of the seven prelates, constituting a college in the Roman Curia...
• protoculture16n. A base or root culture that serves as the basis for later distinct...
• protoplasmic20adj. Of or relating to protoplasm.
• prototypical21adj. Constituting or representing an original type of something that others...
• protozoology27n. The study of protozoa.
• protuberance18n. A bulge, knob, swelling, spine, or anything that protrudes.

Questions about these words

How many twelve-letter words that start with P are there?

Word.ws lists 434 twelve-letter words that start with P, plus 3,979 rare ones.

What are common twelve-letter words that start with P?

professional, particularly, presidential, presentation, photographer, productivity, preservation and prescription.

Which of the twelve-letter words that start with P has the highest letter score?

praziquantel scores 32 points with the standard letter tile values.

Related word lists

• 12-Letter Words
• Words That Start with P
• 11-Letter Words Starting with P
• 13-Letter Words Starting with P
• Q Words Without U