pah

1. Used to express distaste, disgust or outrage.

   Limpet ejaculated "Pah!" like a man bitterly tired of life.

   1913, Norman Lindsay, A Curate in Bohemia, Sydney: N.S.W. Bookstall Co., published 1932, page 12

   2 more examples

   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, published 1623, →OCLC, [Act IV, scene vi]

   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 that, unless properly authorized, she would not have cast a glance upon the handsomest cavalier in the world—no, not if he were even dying at her feet.

   1819, Washington Irving, The Spectre Bridegroom

   Synonyms: yuck

plural pahs

1. datedDated form of pa (“Maori fort”).

plural PAHs

1. abbreviationinitialismbiochemistryInitialism of phenylalanine hydroxylase.

   Synonyms: EC 1.14.16.1

2. abbreviationinitialismchemistryInitialism of polycyclic aromatic hydrocarbon.

   1 more example

   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 concern, they said, were levels of PAHs found on the burnt lumps, which far exceeded safe limits for consumer products set by the EU.

   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 state of our oceans

3. abbreviationinitialismmedicineInitialism of pulmonary arterial hypertension.
4. abbreviationinitialismmedicineInitialism of paradoxical adipose hyperplasia.