the bivalent group, −C2H4−, derived from ethylene or ethane.
Why Are Singing Groups Called “Glee Clubs”?These infamously chipper singing groups are called glee because the melding of voices makes everyone happy, right? Actually, joy has little to do with it.
Also called ethylene radical.
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British Dictionary definitions for ethylene group
chem the divalent group, -CH 2 CH 2 -, derived from ethylene
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