EXAMPLES | WORD ORIGIN noun . Chemistry a white, crystalline, water-insoluble hydrocarbon, C 1 0H 8, usually obtained from coal tar: used in making dyes, as a moth repellant, etc.
naph·tha·line, naph·tha·lin [ naf-th uh-lin, nap-] /ˈnæf θə lɪn, ˈnæp-/
tar camphor. Related forms naph·thal·ic , [naf- thal-ik, nap-] /næfˈθæl ɪk, næp-/ naph·tha·len·ic , [naf-th uh- len-ik, nap-] /ˌnæf θəˈlɛn ɪk, ˌnæp-/ adjective
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for naphthalene Historical Examples of naphthalene
As aniline is to benzene, so are the naphthylamines to
The important constituents of this portion are carbolic acid and
The story of
naphthalene is summarized in the schemes on pp. 164, 165.
It is possible to start from benzene, toluene or
An excess of
naphthalene should also be avoided, since, on account of its strong odour, soaps containing much of it are unpopular. British Dictionary definitions for naphthalene naphthalene naphthaline naphthalin ( ˈnæfθəlɪn, ˈnæp-) noun a white crystalline volatile solid with a characteristic penetrating odour: an aromatic hydrocarbon used in mothballs and in the manufacture of dyes, explosives, etc. Formula: C 10 H 8 Derived Forms naphthalic ( næfˈθælɪk, næp-), adjective Word Origin for naphthalene
naphtha + alcohol + -ene
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for naphthalene n.
1821, coined by English chemist John Kidd (1775-1851), who first isolated and studied it, from
naphtha + chemical suffix -ine (2) + -l- for the sake of euphony.
Online Etymology Dictionary, © 2010 Douglas Harper
n. A toxic carcinogenic hydrocarbon derived from coal tar or petroleum and used as a solvent. Related forms naph′tha•len ( ′ic -lĕn) ′ĭk adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
A white crystalline compound made from coal tar or petroleum and used to make dyes, mothballs, explosives, and solvents. Naphthalene consists of two benzene rings fused together. Chemical formula: C 10H 8.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.