[ meth-uh l-naf-thuh-leen, -nap- ]
/ ˌmɛθ əlˈnæf θəˌlin, -ˈnæp- /
a compound, C11H10, whose alpha isomer, a colorless liquid, is used in determining cetane numbers.
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Words nearby methylnaphthalene
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for methylnaphthalene
/ (ˌmiːθaɪlˈnæpθəˌliːn) /
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