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Ethylidene is a 10 letter word which starts with the letter E and ends with the letter E for which we found 1 definitions.

- 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.
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