oxalyl Chem.
(ˈɒksəlɪl)
[f. oxal- + -yl.]
The hypothetical radical (C2O2) of oxalic acid.
| 1859 Fownes Man. Chem. 398 One molecule of C4H4 (ethylene) and C4O4 (oxalyl). 1873 C. H. Ralfe Phys. Chem. p. xxi, Oxalic acid, C2H2O4, is a double molecule of water in which half the hydrogen is replaced by oxalyl. |