PROPIDENE

Pro"pi*dene, n. Etym: [Propyl + ethylidene.] (Chem.)

Definition: The unsymmetrical hypothetical hydrocarbon radical, CH3.CH2.CH, analogous to ethylidene, and regarded as the type of certain derivatives of propane; -- called also propylidene.

Source: Webster’s Unabridged Dictionary 1913 Edition

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