Oxalyl
Pronunciation : Ox"a*lyl
Part of Speech : n.
Etymology : [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.
Source : Webster's Unabridged Dictionary, 1913