acid

From French acide, from Latin acidus (“sour, acid”), from aceō (“I am sour”). Doublet of agita.

• enPR: ăs'ĭd, IPA^(key): /ˈæs.ɪd/

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• Hyphenation: a‧cid
• Rhymes: -æsɪd

acid (comparative acider, superlative acidest)

1. Sour, sharp, or biting to the taste; tart; having the taste of vinegar.

   acid fruits or liquors

2. (figuratively) Sour-tempered.
   • 1864, Anthony Trollope, The Small House at Allington, Smith, Elder & Co., 2nd Edition, Volume 2, page 235,

     His voice was as stern and his face as acid as ever.

   • 1912, Arthur Conan Doyle, The Lost World […], London; New York, N.Y.: Hodder and Stoughton, OCLC 1029993343:

     It must be admitted that Challenger is provocative in the last degree, but Summerlee has an acid tongue, which makes matters worse.

   • 1914, Louis Joseph Vance, chapter I, in Nobody, New York, N.Y.: George H[enry] Doran Company, published 1915, OCLC 40817384:

     Little disappointed, then, she turned attention to "Chat of the Social World," gossip which exercised potent fascination upon the girl's intelligence. She devoured with more avidity than she had her food those pretentiously phrased chronicles of the snobocracy […] distilling therefrom an acid envy that robbed her napoleon of all its savour.

3. Of or pertaining to an acid; acidic.
   • 1975, Peter N. Barber, ‎Cecil Ernest Lucas Phillips, The Trees Around Us (page 101)

     Like other nyssas, it is in nature a creature of swampy places and looks loveliest where massed close to water and reflected in it, but justifies itself elsewhere if the soil is moist and acid, succeeding in wet clay.

4. (music) Denoting a musical genre that is a distortion (as if hallucinogenic) of an existing genre, as in acid house, acid jazz, acid rock.

• For quotations using this term, see Citations:acid.

• acidic

• alkaline
• base

acid (countable and uncountable, plural acids)

1. A sour substance.
2. (chemistry)
   1. Any compound which yields H+ ions (protons) when dissolved in water; an Arrhenius acid.
   2. Any compound that easily donates protons to a base; a Brønsted acid.
   3. Any compound that can accept a pair of electrons to form a covalent bond; a Lewis acid.
3. Any corrosive substance.
   • 2006, James Fenton, "Jerusalem".

     You are in error. / This is terror. / This is your banishment. This land is mine. / This is what you earn. / This is the Law of No Return. / This is the sour dough, this the sweet wine. / This is my history, this my race / And this unhappy man threw acid in my face.

4. (uncountable, slang) LSD, lysergic acid diethylamide.
   • 1967, Joe David Brown, editor, The Hippies, New York: Time, Inc, page 171:

     In the end, though, there is one sure way to distinguish a real hippie from his assorted sympathizers: hippies drop acid. That is, real hippies frequently, if irregularly, ingest LSD.

• alkali
• base

• See also Thesaurus:acid

• acerbic
• acro-
• pH
• Category:en:Acids

• acid in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913

• -adic, Daic, adic, cadi, caid

acid m (indefinite plural acide, definite singular acidi, definite plural acidet)

1. (chemistry) acid

   Synonym: thartor

• acid in Fjalor i gjuhës së sotme shqipe at shkenca.org

Borrowed from French acide, from Latin acidus (“sour, acid”).

• IPA^(key): [aˈt͡ʃid]

acid m or n (feminine singular acidă, masculine plural acizi, feminine and neuter plural acide)

1. acid, acidic

• aciditate

acid m (plural acizi)

1. acid

• acid dezoxiribonucleic

• acid in DEX online - Dicționare ale limbii române (Dictionaries of the Romanian language)

acid (invariable)

1. (music) acid

acid m (uncountable)

1. (music) acid

• “acid”, in Diccionario de la lengua española, Vigésima tercera edición, Real Academia Española, 2014