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1. Dictionary

   Ac·id

   /ˈasəd/

   

   noun

   • 1. a chemical substance that neutralizes alkalis, dissolves some metals, and turns litmus red; typically, a corrosive or sour-tasting liquid of this kind. "traces of acid"
   • ▪ bitter or cutting remarks or tone of voice: "she was unable to quell the acid in her voice"
   • 2. a molecule or other entity that can donate a proton or accept an electron pair in reactions.
   • 3. the drug LSD: informal "she didn't have a clue the candy had acid in it"

   adjective

   • 1. containing acid or having the properties of an acid; having a pH of less than 7. "poor, acid soils"
   • 2. sharp-tasting or sour: "acid fruit" Similar acidicsourtartbitterunsweetenedsharpbitingacridpungentacerbicvinegaryvinegarishaceticacetousrare:acidulousacidulatedOpposite sweet
   • ▪ (of a person's remarks or tone) bitter or cutting: "she was stung into acid defiance" Similar acerbicsarcasticsharpsardonicsatiricalscathingcuttingrazor-edgedincisivepenetratingpiercingbitingstingingsearingkeencaustictrenchantmordantbitteracrimoniousastringentharshsevereabrasivewoundinghurtfulunkindcruelvitriolicvirulentvenomouspoisonouswaspishspitefulviciousmaliciousacerbinformal:bitchycattysarkysnarkyrare:mordaciousacidulousOpposite kindpleasantcomplimentary
   • ▪ (of a color) intense or bright: "an acid green"
   • 3. (of rock, especially lava) containing a relatively high proportion of silica: "the magma may start off fairly basic and end up at the close of the eruption much more acid"
   • ▪ relating to or denoting steelmaking processes involving silica-rich refractories and slags: "the acid Bessemer process"

   Word Origin early 17th century (in the sense ‘sour-tasting’): from Latin acidus, from acere ‘be sour’.

   Derivatives

   • 1. acidy adjective
   • 2. acidness noun

   Scrabble Points: 7

   • A

     1

   • C

     3

   • I

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   • D

     2

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2. www.thoughtco.com › definition-of-acid-and-examples-604358Acid: Definition and Examples in Chemistry - ThoughtCo

   www.thoughtco.com › definition-of-acid-and-examples-604358

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   Jan 13, 2020 · By. Anne Marie Helmenstine, Ph.D. Updated on January 13, 2020. An acid is a chemical species that donates protons or hydrogen ions and/or accepts electrons. Most acids contain a hydrogen atom bonded that can release (dissociate) to yield a cation and an anion in water.

3. sciencenotes.org › what-is-an-acid-in-chemistry-definition-and-examplesWhat Is an Acid in Chemistry? Definition and Examples

   sciencenotes.org › what-is-an-acid-in-chemistry-definition-and-examples

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   Feb 14, 2023 · An acid is a hydrogen ion or proton donor or an electron pair acceptor. Not all compounds containing hydrogen are acids. Acids have a pH less than 7, turn litmus paper red, taste sour, and react with bases. Examples of acids include hydrochloric acid (HCl), sulfuric acid (H 2 SO 4 ), and acetic acid (CH 3 COOH).

4. dictionary.cambridge.org › us › dictionaryACID | definition in the Cambridge English Dictionary

   dictionary.cambridge.org › us › dictionary

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   noun. us / ˈæs.ɪd / uk / ˈæs.ɪd / acid noun (CHEMICAL) Add to word list. B2 [ C or U ] any of various usually liquid substances that can react with and sometimes dissolve other materials: acetic/hydrochloric/ lactic acid. Vinegar is an acid. Fewer examples. Nitric acid will dissolve most animal tissue.

5. dictionary.cambridge.org › dictionary › englishACID | English meaning - Cambridge Dictionary

   dictionary.cambridge.org › dictionary › english

   • Cached

   noun. uk / ˈæs.ɪd / us / ˈæs.ɪd / acid noun (CHEMICAL) Add to word list. B2 [ C or U ] any of various usually liquid substances that can react with and sometimes dissolve other materials: acetic/hydrochloric/ lactic acid. Vinegar is an acid. Fewer examples. Nitric acid will dissolve most animal tissue.

6. www.dictionary.com › browse › acid%C2%A0ACID Definition & Usage Examples | Dictionary.com

   www.dictionary.com › browse › acid%C2%A0

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   Acids are proton donors that yield hydronium ions in water solution, or electron-pair acceptors that combine with electron-pair donors or bases. a substance with a sour taste. something, as a remark or piece of writing, that is sharp, sour, or ill-natured: His criticism was pure acid.

7. www.oxfordlearnersdictionaries.com › definition › englishacid noun - Definition, pictures, pronunciation and usage notes...

   www.oxfordlearnersdictionaries.com › definition › english

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   Definition of acid noun from the Oxford Advanced Learner's Dictionary. acid. noun. /ˈæsɪd/ [uncountable, countable] (chemistry) a chemical, usually a liquid, that contains hydrogen and has a pH of less than seven. The hydrogen can be replaced by a metal to form a salt.

8. www.britannica.com › dictionary › acidAcid Definition & Meaning | Britannica Dictionary

   www.britannica.com › dictionary › acid

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   Britannica Dictionary definition of ACID. 1. chemistry : a chemical with a sour taste that forms a salt when mixed with a base. [count] the acids in your stomach. [noncount] the kinds of acid found in your stomach. An acid has a pH of less than 7. Very strong acids are able to burn holes in things. — compare 1 base 6, ph. 2.