2 definitions found for ethidene

Ethidene Eth"i*dene, n. [From Ether.] (Chem.) Ethylidene. [Obs.]

Ethylidene E*thyl"i*dene (Chem.) An unsymmetrical, divalent, hydrocarbon radical, C2H4 metameric with ethylene but written thus, CH3.CH to distinguish it from the symmetrical ethylene, CH2.CH2. Its compounds are derived from aldehyde. Formerly called also ethidene.