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1. Dictionary

   acid

   /ˈasɪd/

   noun

   • 1. a substance with particular chemical properties including turning litmus red, neutralizing alkalis, and dissolving some metals; typically, a corrosive or sour-tasting liquid of this kind. "trees were exposed to mixtures of heavy metals, acids, and overdoses of nutrients"
   • ▪ bitter or cutting remarks or tone of voice: "she was unable to quell the acid in her voice"
   • 2. a molecule or other species which can donate a proton or accept an electron pair in reactions.
   • 3. the drug LSD: informal "she didn't have a clue the sweet had acid in it"

   adjective

   • 1. containing acid or having the properties of an acid; having a pH of less than 7. "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 colour) strikingly 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 steel-making 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

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2. byjus.com › chemistry › acids-and-basesAcids and Bases - Definition, Examples, Properties, Uses with ...

   byjus.com › chemistry › acids-and-bases

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   An acid is any hydrogen-containing substance that is capable of donating a proton (hydrogen ion) to another substance. A base is a molecule or ion able to accept a hydrogen ion from an acid. Acidic substances are usually identified by their sour taste.

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

   sciencenotes.org › what-is-an-acid-in-chemistry

   • Cached

   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. www.britannica.com › science › acidAcid | Definition, Examples, Types, Uses, & Facts | Britannica

   www.britannica.com › science › acid

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   Oct 3, 2024 · acid, any substance that in water solution tastes sour, changes the colour of certain indicators (e.g., reddens blue litmus paper), reacts with some metals (e.g., iron) to liberate hydrogen, reacts with bases to form salts, and promotes certain chemical reactions (acid catalysis).

5. www.merriam-webster.com › dictionary › acidAcid Definition & Meaning - Merriam-Webster

   www.merriam-webster.com › dictionary › acid

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   The meaning of ACID is a sour substance; specifically : any of various typically water-soluble and sour compounds that in solution are capable of reacting with a base to form a salt, redden litmus, and have a pH less than 7, that are hydrogen-containing molecules or ions able to give up a proton to a base, or that are substances able to accept ...

6. www.dictionary.com › browse › acidACID Definition & Meaning | Dictionary.com

   www.dictionary.com › browse › acid

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   Acid definition: 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.

7. chem.libretexts.org › Bookshelves › Introductory6.1: What is an Acid and a Base? - Chemistry LibreTexts

   chem.libretexts.org › Bookshelves › Introductory

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   The earliest definition of acids and bases is Arrhenius's definition which states that: An acid is a substance that forms hydrogen ions H + when dissolved in water, and A base is a substance that forms hydroxide ions OH - when dissolved in water.

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

   dictionary.cambridge.org › dictionary › english

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   ACID definition: 1. any of various usually liquid substances that can react with and sometimes dissolve other…. Learn more.