methylnaphthalene

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

/ ˌmɛθ əlˈnæf θəˌlin, -ˈnæp- /

noun Chemistry.

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

Nearby words

methylidyne group, methylisobutenyl ketone, methylmalonic aciduria, methylmercury, methylmorphine, methylnaphthalene, methylol, methylparaben, methylpentose, methylphenidate, methylphenol

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

/ (ˌmiːθaɪlˈnæpθəˌliːn) /

noun

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

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012