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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

     1

   • D

     2

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   More definitions, origin and scrabble points

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

   www.britannica.com › science › acid

   • Cached

   Jun 20, 2024 · An acid is a substance that releases hydrogen ions in water solution and has various properties and reactions. Learn about the different types of acids, such as mineral, organic, and nonaqueous, and how they are measured by the pH scale.

   • Sulfonic Acid

     sulfonic acid, any of a class of organic acids containing...

   • Lewis Theory

     Lewis theory, generalization concerning acids and bases...

   • Arrhenius Theory

     Arrhenius theory, theory, introduced in 1887 by the Swedish...

   • Oxyacid

     oxyacid, any oxygen-containing acid.Most covalent...

   • Bronsted-Lowry Theory

     Bronsted-Lowry theory, a theory stating that any compound...

   • Acid–Base Reaction

     acid–base reaction, a type of chemical process typified by...

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

   byjus.com › chemistry › acids-and-bases

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   Learn what acids and bases are, how they are defined by different theories, and how they react with each other. Find out the properties, uses, and pH values of acids and bases, and how to test them with litmus paper.

4. Videos

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     7:49

     youtube.com

     Arrhenius definition of acids and bases | Biology | Khan Academy

     3 Jul 2015

     474.2K views

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     2:05

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     Acid and Base Definitions | Arrhenius, Bronsted-Lowry, and Lewis

     1 Oct 2018

     140.3K views

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     32:34

     youtube.com

     16.1 Introduction to Acids and Bases | General Chemistry

     1 Feb 2022

     62.9K views

   View all

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

   www.merriam-webster.com › dictionary › acid

   • Cached

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

   dictionary.cambridge.org › dictionary › english

   • Cached

   Acid is a noun that refers to a chemical substance that can react with and sometimes dissolve other materials, or an adjective that describes something sour or unkind. Learn more about the different types, properties and uses of acids with Cambridge Dictionary.

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

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

   • Cached

   Jan 13, 2020 · Learn what an acid is in chemistry, how to identify different types of acids, and how acids behave in water. See examples of Arrhenius, Brønsted-Lowry, and Lewis acids, and their properties and reactions.

8. chem.libretexts.org › Bookshelves › Introductory_Chemistry6.1: What is an Acid and a Base? - Chemistry LibreTexts

   chem.libretexts.org › Bookshelves › Introductory_Chemistry

   • Cached

   Acids taste sour, e.g., citrus fruits taste source because of citrus acid and ascorbic acid, i.e., vitamin C, in them. Basic (alkaline) substances, on the other hand, taste bitter. Basic (alkaline) substances feel soupy, while acidic substances may sting.

9. sciencenotes.org › what-is-an-acid-in-chemistry-definitionWhat Is an Acid in Chemistry? Definition and Examples

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

   • Cached

   Feb 14, 2023 · Learn what an acid is in chemistry, based on different acid-base theories. Find out the properties, types, and examples of acids, such as hydrochloric acid, sulfuric acid, and acetic acid.