Ethylidene

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  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}.


     [1913 Webster]