pah

Interjection

1. Used to express distaste, disgust or outrage.
   • Fie! fie! fie! pah! pah! Give me an ounce of civet, good apothecary, to sweeten my imagination.c. 1603–1606, William Shakespeare, “The Tragedie of King Lear”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount...
   • She was rarely suffered out of their sight; never went beyond the domains of the castle, unless well attended, or, rather, well watched; had continual lectures read to her about strict decorum and implicit obedience; and, as to the men—pah! she was taught to hold them at such distance and distrust...1819, Washington Irving, The Spectre Bridegroom

   Synonyms:

   yuck

Noun capitalized: PAH

PAH (plural PAHs)

1. (abbreviation, initialism) Initialism of phenylalanine hydroxylase.

   Synonyms:

   EC 1.14.16.1

2. (abbreviation, initialism) Initialism of polycyclic aromatic hydrocarbon.
   • Researchers analysed samples of nurdles and burnt lumps of plastic from four Sri Lankan beaches for heavy metals and various chemicals, including benzotriazole UV-stabilisers, which are used to prevent discoloration in plastics, bisphenols and polyaromatic hydrocarbons (PAHs). […] Of particular...2022 February 9, Karen McVeigh, “‘Oil spills of our time’: experts sound alarm about plastic lost in cargo ship disasters”, in The Guardian, Guardian Media Group, retrieved 11 Feb 2022, Seascape: the...
3. (abbreviation, initialism) Initialism of pulmonary arterial hypertension.
4. (abbreviation, initialism) Initialism of paradoxical adipose hyperplasia.