ALL meanings of acid

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  • variable noun acid An acid is a chemical substance, usually a liquid, which contains hydrogen and can react with other substances to form salts. Some acids burn or dissolve other substances that they come into contact with. 3
  • adjective acid An acid substance contains acid. 3
  • graded adjective acid An acid fruit or drink has a sour or sharp taste. 3
  • graded adjective acid An acid remark, or acid humour, is very unkind or critical. 3
  • uncountable noun acid The drug LSD is sometimes referred to as acid. 3
  • noun acid any substance that dissociates in water to yield a sour corrosive solution containing hydrogen ions, having a pH of less than 7, and turning litmus red 3
  • noun acid a sour-tasting substance 3
  • adjective acid of, derived from, or containing acid 3
  • adjective acid being or having the properties of an acid 3
  • adjective acid sharp or sour in taste 3
  • adjective acid cutting, sharp, or hurtful in speech, manner, etc; vitriolic; caustic 3
  • adjective acid (of rain, snow, etc) containing pollutant acids in solution 3
  • adjective acid (of igneous rocks) having a silica content of more than 60% of the total and containing at least one tenth quartz 3
  • adjective acid of or made by a process in which the furnace or converter is lined with an acid material 3
  • adjective acid sharp and biting to the taste; sour; tart 3
  • adjective acid sharp or sarcastic in temperament or speech 3
  • adjective acid that is, or has the properties of, an acid 3
  • adjective acid having too heavy a concentration of acid 3
  • noun acid a sour substance 3
  • noun acid LSD 3
  • noun acid any compound that can react with a base to form a salt, the hydrogen of the acid being replaced by a positive ion; in modern theory, any substance that produces a positive ion and accepts electrons from a base to form covalent bonds: in water solution an acid tastes sour, turns blue litmus paper red, and, in the dissociation theory, produces free hydrogen ions 3
  • noun acid A chemical substance that neutralizes alkalis, dissolves some metals, and turns litmus red; typically, a corrosive or sour-tasting liquid of this kind. 1
  • noun acid chemical compound 1
  • noun acid drugs: LSD 1
  • adjective acid food: sharp in taste 1
  • adjective acid speech, wit: sharp, biting 1
  • noun Technical meaning of acid (programming)   A mnemonic for the properties a transaction should have to satisfy the Object Management Group Transaction Service specifications. A transaction should be Atomic, its result should be Consistent, Isolated (independent of other transactions) and Durable (its effect should be permanent). The Transaction Service specifications which part of the Object Services, an adjunct to the CORBA specifications. 1
  • noun acid Chemistry. a compound usually having a sour taste and capable of neutralizing alkalis and reddening blue litmus paper, containing hydrogen that can be replaced by a metal or an electropositive group to form a salt, or containing an atom that can accept a pair of electrons from a base. Acids are proton donors that yield hydronium ions in water solution, or electron-pair acceptors that combine with electron-pair donors or bases. 1
  • noun acid a substance with a sour taste. 1
  • noun acid something, as a remark or piece of writing, that is sharp, sour, or ill-natured: His criticism was pure acid. 1
  • noun acid Slang. LSD2 . 1
  • adjective acid Chemistry. belonging or pertaining to acids or the anhydrides of acids. having only a part of the hydrogen of an acid replaced by a metal or its equivalent: an acid phosphate. having a pH value of less than 7. Compare alkaline (def 4). 1
  • adjective acid sharp or biting to the taste; tasting like vinegar; sour: acid fruits. 1
  • adjective acid sharp, biting, or ill-natured in mood, manner, etc.: an acid remark; an acid wit. 1
  • adjective acid Geology. containing much silica. 1
  • adjective acid Metallurgy. noting, pertaining to, or made by a process in which the lining of the furnace, or the slag that is present, functions as an acid in high-temperature reactions in taking electrons from oxide ions: usually a siliceous material, as sand or ganister. Compare basic (def 3). 1
  • idioms acid put on the acid, Australian Slang. to importune someone, as for money, sexual favors, or confidential information. 1
  • noun acid A sour substance. 0
  • noun acid (chemistry) Any of several classes of compound having the following properties:-. 0
  • noun acid (Slang) lysergic acid diethylamide (LSD). 0
  • adjective acid Sour, sharp, or biting to the taste; tart; having the taste of vinegar. 0
  • adjective acid (figuratively) Sour-tempered. 0
  • adjective acid Of or pertaining to an acid; acidic. 0
  • adjective acid (music) Denoting a musical genre that is a distortion (as if hallucinogenic) of an existing genre, as in acid house, acid jazz, acid rock. 0
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