methylnaphthalene

[meth-uh l-naf-thuh-leen, -nap-]

noun Chemistry.

a compound, C11H10, whose alpha isomer, a colorless liquid, is used in determining cetane numbers.

Origin of methylnaphthalene

First recorded in 1880–85; methyl- + naphthalene

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for methylnaphthalene

methylnaphthalene

noun

either of two isomeric derivatives of naphthalene: a liquid (1-methylnaphthalene), used in standardizing diesel fuels, or a solid (2-methylnaphthalene), an insecticide

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