carboxylic acid

acid /ac·id/ (as´id)

1. sour.

2. a chemical compound that dissociates in solution, releasing hydrogen ions and lowering the solution pH (a proton donor). An acidic solution has a pH below 7.0. Cf. base (3). For particular acids, see the specific names.

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acid citrate dextrose  (ACD) anticoagulant citrate dextrose solution.

amino acid  see under amino.

carboxylic acid  any organic compound containing the carboxy group (—COOH), including amino and fatty acids.

fatty acid  see under F.

haloid acid  an acid which contains no oxygen in the molecule, but is composed of hydrogen and a halogen element.

hydroxy acid  an organic acid that contains an additional hydroxyl group.

inorganic acid  any acid containing no carbon atoms.

nucleic acid  see under N.

organic acid  an acid containing one or more carbon atoms; often specifically a carboxylic acid.

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carboxylic acid

[kär′bok·sil′ik as′id]

any of a group of organic acids containing the carboxyl radical M-COOH, including amino acids and fatty acids.

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carboxylic acid

an organic compound containing the carboxy group (−COOH), which is weakly ionized in solution forming a carboxylate ion (−COO−).