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carboxyl n. 羧基 羧基 carboxyl adj 1: relating to or containing the carboxyl group or carboxyl radical [synonym: {carboxyl}, {carboxylic}] n 1: the univalent radical -COOH; present in and characteristic of organic acids [synonym: {carboxyl}, {carboxyl group}] Oxalyl \Ox"a*lyl\, n. [Oxalic -yl.] (Chem.)
(a) A hydrocarbon radical ({C2O2}) regarded as a residue of oxalic acid and occurring in derivatives of it. (b) An old name for {carbonyl}. (c) An old name for {carboxyl}. [1913 Webster] Carboxyl \Car*box"yl\ (k[aum]r*b[o^]ks"[i^]l), n. [Carbon oxygen -yl.] (Chem.) The complex radical, {CO.OH}, regarded as the essential and characteristic constituent which all oxygen acids of carbon (as formic, acetic, benzoic acids, etc.) have in common; -- called also {oxatyl}. [1913 Webster]
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