from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The divalent radical CH3-CH= formally obtained by removing two hydrogen atoms from the same carbon atom of ethane
from the GNU version of the Collaborative International Dictionary of English
- 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.
from The Century Dictionary and Cyclopedia
- n. A bivalent organic radical, CH3CH ⟨. Sometimes called ethidene.
Sorry, no etymologies found.