˜yÐÄvlog

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methylnaphthalene

[ meth-uhl-naf-thuh-leen, -nap- ]

noun

Chemistry.
  1. a compound, C 1 1 H 1 0 , whose alpha isomer, a colorless liquid, is used in determining cetane numbers.

methylnaphthalene

/ ËŒ³¾¾±Ëθ²¹Éª±ôˈ²Ôæ±èθəˌ±ô¾±Ë²Ô /

noun

  1. 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
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˜yÐÄvlog History and Origins

Origin of methylnaphthalene1

First recorded in 1880–85; methyl- + naphthalene

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