Webster's Online Dictionary
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Definition: ALLYLENE

Part of Speech Definition
Noun 1. A gaseous hydrocarbon, C3H4, homologous with acetylene; propine.[Websters].

Source: Webster's Revised Unabridged Dictionary (1913)

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Date "Allylene" was first used in popular English literature: sometime before 1914. (references)

Definition: ALLYLENE

Part of SpeechDefinition
Noun1. A gaseous hydrocarbon, C3H4, homologous with acetylene; propine.[Websters].

Source: Webster's Revised Unabridged Dictionary (1913)

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Date "ALLYLENE" was first used in popular English literature: sometime before 1914. (references)