Meaning of ACID in English


Any substance that in water solution tastes sour, changes the colour of acid-base indicators (e.g., litmus ), reacts with some metal s (e.g., iron) to yield hydrogen gas, reacts with base s to form salt s, and promotes certain chemical reaction s (e.g., acid catalysis ).

Acids contain one or more hydrogen atoms that, in solution, dissociate as positively charged hydrogen ion s. Inorganic, or mineral, acids include sulfuric acid , nitric acid , hydrochloric acid , and phosphoric acid. Organic acids include carboxylic acid s, phenol s, and sulfonic acids. Broader definitions of acids cover situations in which water is not present. See also acid-base theory .


[c mediumvioletred] (as used in expressions)

lysergic acid diethylamide

nicotinic acid

ribonucleic acid

tannic acid

acetic acid

acid and basic rocks

acid rain

acid base theory

amino acid

aspartic acid

carbolic acid

carboxylic acid

citric acid

fatty acid

folic acid

folic acid deficiency anemia

formic acid

glutamic acid

hydrochloric acid

muriatic acid

lactic acid

nitric acid

nucleic acid

oxalic acid

pantothenic acid

salicylic acid

sulfuric acid

tricarboxylic acid cycle

citric acid cycle

uric acid

{{link=ascorbic acid">ascorbic acid

Britannica English dictionary.      Английский словарь Британика.