Webster's Online Dictionary
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Definition: DINAPHTHYL

Part of Speech Definition
Noun 1. A colorless, crystalline hydrocarbon, C20H14, obtained from naphthylene, and consisting of a doubled naphthylene radical.[Websters].

Source: Webster's Revised Unabridged Dictionary (1913)

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

Note: Dinaphthyl \Di*naph"thyl\, noun. [Prefix di- naphthylene.]. (references)

Definition: DINAPHTHYL

Part of SpeechDefinition
Noun1. A colorless, crystalline hydrocarbon, C20H14, obtained from naphthylene, and consisting of a doubled naphthylene radical.[Websters].

Source: Webster's Revised Unabridged Dictionary (1913)

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

Note: Dinaphthyl \Di*naph"thyl\, noun. [Prefix di- naphthylene.]. (references)