Oxalethyline \Ox`al*eth"yl*ine\, n. [Oxalic + ethyl + -ine.] A poisonous nitrogenous base ({C6H10N2}) obtained indirectly from oxamide as a thick transparent oil which has a strong narcotic odor, and a physiological action resembling that of atropine. It is probably related to pyridine. [1913 Webster]