acid
IPA: ˈæsʌd
noun
- A sour substance.
- (chemistry)
- Any compound which yields H+ ions (protons) when dissolved in water; an Arrhenius acid.
- Any compound that easily donates protons to a base; a Brønsted acid.
- Any compound that can accept a pair of electrons to form a covalent bond; a Lewis acid.
- Any corrosive substance.
- (uncountable, slang) LSD, lysergic acid diethylamide.
- (databases) Acronym of atomicity, consistency, isolation, and durability, a set of properties that guarantee database transactions are processed reliably. [(countable, chemistry)]
adjective
- Sour, sharp, or biting to the taste; tart; having the taste of vinegar.
- (figuratively) Sour-tempered.
- Of or pertaining to an acid; acidic.
- (music) Denoting a musical genre that is a distortion (as if hallucinogenic) of an existing genre, as in acid house, acid jazz, acid rock.
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Examples of "acid" in Sentences
- Acetic acid is one of the simplest carboxylic acids.
- The product of the reaction is glycerol and fatty acids.
- The following reaction is the oxidation of the fatty acid.
- Both the acid and alkali reactions are brisk and vigorous.
- Acid reflux happens when stomach acids rise in the esophagus.
- Chemically it is the ether between lactic acid and glucosamine.
- This kind of reaction occurs in the biosynthesis of fatty acids.
- Limestone dissolves in acids, neutralizing the acid in the process.
- The chemical compound calcium acetate is the calcium salt of acetic acid.
- It is the reversal of charge with salts of the hydroxy acids and with nitric acid.
- The sulphuric acid thus estimated was present in the leather as _free sulphuric acid_.
- Concentrated nitric acid highly charged with this substance is called _fuming nitric acid_.
- The commercial acid, often called _muriatic acid_, is usually colored yellow by impurities.
- Figuratively, acid applies to anything sour or biting; for example, an acid wit is sharp and unpleasant.
- An excess of the trioxide may dissolve in the strong sulphuric acid, forming what is known as _fuming sulphuric acid_.
- _Pepsin_ is the enzyme which acts upon proteids, but it is able to act only in an acid medium — a condition which is supplied by the _hydrochloric acid_.
- _Hydrochloric acid_ gas is also decomposed at ordinary temperatures with flame, and, if there is not a large excess of hydrochloric acid present, with detonation.
- The free acidity is sometimes expressed as _acid value_, which is the amount of KOH in milligrammes necessary to neutralise the free acid in 1 gramme of fat or oil.
- Stale butter or that which is improperly kept develops an acid called _butyric acid_, which gives a disagreeable odor and flavor to butter and often renders it unfit for use.
- If ammonia be added to the original solution, _alkaline hæmatin_ is produced, or if acetic acid be chosen, _acid hæmatin_ is produced, and each gives its appropriate absorption bands.