naphthalene

[ naf-thuh-leen, nap- ]

/ ˈnæf θəˌlin, ˈnæp- /

noun Chemistry.

a white, crystalline, water-insoluble hydrocarbon, C10H8, usually obtained from coal tar: used in making dyes, as a moth repellant, etc.

Also naph·tha·line, naph·tha·lin

[naf-thuh-lin, nap-]. /ˈnæf θə lɪn, ˈnæp-/.

Also called tar camphor .

Origin of naphthalene

First recorded in 1865–70; naphth- + -al³ + -ene

OTHER WORDS FROM naphthalene

naph·thal·ic

[naf-thal-ik, nap-], /næfˈθæl ɪk, næp-/, naph·tha·len·ic

[naf-thuh-len-ik, nap-], /ˌnæf θəˈlɛn ɪk, ˌnæp-/, adjective

Words nearby naphthalene

Naphtali, Naphtalite, naphth-, naphtha, naphthacene, naphthalene, naphthalize, naphthene, naphthol, naphthol yellow S, naphthyl

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for naphthalene

If four atoms of chlorine enter the naphthalene molecule the product is a hard wax that rings like a metal.
Creative Chemistry|Edwin E. Slosson
He found that by acting on naphthalene—the moth-ball stuff—with chlorine he got a series of useful products called "halowaxes."
Creative Chemistry|Edwin E. Slosson
From this last statement it will be inferred that naphthalene is now a source of colouring-matters.
Coal|Raphael Meldola
The important constituents of this portion are carbolic acid and naphthalene.
Coal|Raphael Meldola

The same thing applies to quinoline as compared to naphthalene.
Scientific American Supplement, No. 415, December 15, 1883|Various

British Dictionary definitions for naphthalene

naphthalene

naphthaline naphthalin (ˈnæfθəlɪn, ˈnæp-)

/ (ˈnæfθəˌliːn, 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 of naphthalene

naphthalic (næfˈθælɪk, næp-), adjective

Word Origin for naphthalene

C19: from naphtha + alcohol + -ene

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

Medical definitions for naphthalene

naphthalene

n.

A toxic carcinogenic hydrocarbon derived from coal tar or petroleum and used as a solvent.

Other words from naphthalene

naph′tha•len′ic (-lĕn′ĭk) adj.

Scientific definitions for naphthalene

naphthalene

[ năf′thə-lēn′ ]

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: C10H8.

单词	naphthalene
释义	naphthalene [ naf-thuh-leen, nap- ] / ˈnæf θəˌlin, ˈnæp- / noun Chemistry. a white, crystalline, water-insoluble hydrocarbon, C10H8, usually obtained from coal tar: used in making dyes, as a moth repellant, etc. Also naph·tha·line, naph·tha·lin [naf-thuh-lin, nap-]. /ˈnæf θə lɪn, ˈnæp-/. Also called tar camphor . Origin of naphthalene First recorded in 1865–70; naphth- + -al³ + -ene OTHER WORDS FROM naphthalene naph·thal·ic [naf-thal-ik, nap-], /næfˈθæl ɪk, næp-/, naph·tha·len·ic [naf-thuh-len-ik, nap-], /ˌnæf θəˈlɛn ɪk, ˌnæp-/, adjective Words nearby naphthalene Naphtali, Naphtalite, naphth-, naphtha, naphthacene, naphthalene, naphthalize, naphthene, naphthol, naphthol yellow S, naphthyl Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for naphthalene If four atoms of chlorine enter the naphthalene molecule the product is a hard wax that rings like a metal. Creative Chemistry\|Edwin E. Slosson He found that by acting on naphthalene—the moth-ball stuff—with chlorine he got a series of useful products called "halowaxes." Creative Chemistry\|Edwin E. Slosson From this last statement it will be inferred that naphthalene is now a source of colouring-matters. Coal\|Raphael Meldola The important constituents of this portion are carbolic acid and naphthalene. Coal\|Raphael Meldola The same thing applies to quinoline as compared to naphthalene. Scientific American Supplement, No. 415, December 15, 1883\|Various British Dictionary definitions for naphthalene naphthalene naphthaline naphthalin (ˈnæfθəlɪn, ˈnæp-) / (ˈnæfθəˌliːn, 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 of naphthalene naphthalic (næfˈθælɪk, næp-), adjective Word Origin for naphthalene C19: from naphtha + alcohol + -ene 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 Medical definitions for naphthalene naphthalene n. A toxic carcinogenic hydrocarbon derived from coal tar or petroleum and used as a solvent. Other words from naphthalene 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. Scientific definitions for naphthalene naphthalene [ năf′thə-lēn′ ] 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: C10H8. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
随便看	colonialize colonial siding colonial spanish colonic colonies colonist colonitis colonization colonize colonna colonnade colonnette colonopathy colonorrhagia colonorrhea colonoscope colonoscopy colonsay colonus colony colony collapse disorder colony-stimulating factor colopexostomy colopexy colophon