acenaphthylene

noun

ace·​naph·​thy·​lene

-thəˌlēn

plural -s

: a yellowish crystalline hydrocarbon C₁₂H₈ made by dehydrogenation of acenaphthene

Word History

Etymology

International Scientific Vocabulary acenaphth- + -ylene

First Known Use

1877, in the meaning defined above

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