Word.ws English Dictionary

allo-

/æloʊ-/

allo- prefix: nonself; nonself but of the same species.

Prefix

allo-

  1. Nonself; nonself but of the same species.
    • allogeneous
    • allorecognition
    Synonyms:
    hetero-
    Antonyms:
    auto-, self-, ipsi-
    1. Alloimmunity; (biology, medicine, transplantation) transplantation of cells or tissues from one person to another.
      • alloresponse
      • alloreaction
    2. An arbitrary member of a heterogenous-but-interrelated group.
      • alloalbumin
      • allomorph
  2. External, outside, or from a separate location.
    • allonomous
    • allochory
    1. Hybridization of multiple species.
      • allohaploid
      • allopolyploid
  3. Isomeric; especially, of amino acids having two chiral centres, the second diastereoisomer to be discovered or synthesized.
    • allolactose
    • allocholane
    1. a diastereomer having the same configuration on four neighboring chiral carbon atoms as carbohydrate allose.
  4. Different, distinct, or other with respect to the root.
    • allosome
    • allonym
    1. Abnormal, defective with respect to the root.
      • allolalia
      • allochromasia
    2. Unconventional, unusual, or unexpected.
      • allophone
      • alloparent
    3. Changed or modified.
      • allohistorical
      • alloplasm
    4. Synthetic, artificial.
      • alloprotein
      • allopurinol
  5. Variety, heterogeneity.
    • allopelagic
    • allochronic
    1. Alternative, variant in form.
      • allophony
      • allocher
    2. Impure in composition.
      • allochromatic
      • allochromatic
  6. (ethology) Alloparenting: parenting behaviours between animals who are not parent and child.
    • allosuck
    • allocare
  7. Not asexual; attracted to others.
    • alloromantic
    • alloerotic

Synonyms of allo-

Antonyms

Origin of allo-

From Ancient Greek ἄλλος (állos, “other”), from Proto-Hellenic *ál͏̌l͏̌os, from Proto-Indo-European *h₂élyos (English else).

Words formed from allo-

Questions about allo-

What does allo- mean?
Allo- means nonself; nonself but of the same species.
What part of speech is allo-?
Allo- is a prefix.
How do you pronounce allo-?
Allo- is pronounced /æloʊ-/ (US).

Words near allo- in the dictionary

  1. allnighter
  2. allnighters
  3. Allnutt
  4. Allnutts
  5. allo
  6. allo-
  7. allo-aro
  8. Alloa
  9. alloacceptor
  10. alloacceptors
  11. alloactivated

Source and license

Adapted from Wiktionary: allo- (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Flame, not lame-allo-.wav.

Cite this entry: “allo-.” Word.ws, https://word.ws/allo-. Based on Wiktionary, CC BY-SA 4.0.