ace·​naph·​thy·​lene | \ -thəˌlēn \
plural -s

Definition of acenaphthylene

: a yellowish crystalline hydrocarbon C12H8 made by dehydrogenation of acenaphthene

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First Known Use of acenaphthylene

1877, in the meaning defined above

History and Etymology for acenaphthylene

International Scientific Vocabulary acenaphth- + -ylene

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Time Traveler for acenaphthylene

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The first known use of acenaphthylene was in 1877

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Cite this Entry

“Acenaphthylene.” The Dictionary, Merriam-Webster Inc., Accessed 10 December 2019.

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to state or do over again or repeatedly

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