[meth-uh l-naf-thuh-leen, -nap-]
- a compound, C11H10, whose alpha isomer, a colorless liquid, is used in determining cetane numbers.
Origin of methylnaphthalene
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- either of two isomeric derivatives of naphthalene: a liquid (1-methylnaphthalene), used in standardizing diesel fuels, or a solid (2-methylnaphthalene), an insecticide