Hypertext Webster Gateway: "carboxyl"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
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}.
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Carboxyl \Car*box"yl\, 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}.
From WordNet (r) 1.7 (wn)
carboxyl
adj : (chemistry) relating to or containing the carboxyl group or
carboxyl radical [syn: {carboxylic}]
n : the univalent radical COOH; present in and characteristic of
organic acids [syn: {carboxyl group}]
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