naphthalene

noun
naph·​tha·​lene | \ ˈnaf-thə-ˌlēn How to pronounce naphthalene (audio) , nonstandard ˈnap- \

Definition of naphthalene

: a crystalline aromatic hydrocarbon C10H8 usually obtained by distillation of coal tar and used especially in organic synthesis

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Examples of naphthalene in a Sentence

Recent Examples on the Web On Earth, superplasticizers are typically hard-to-pronounce substances like naphthalene and polycarboxylate. Daniel Oberhaus, Wired, "On the Moon, Astronaut Pee Will Be a Hot Commodity," 22 May 2020 The sample cylinders made with urea and naphthalene could hold the heavy weights and retain a mostly stable shape. Ashley Strickland, CNN, "Moon bases could be built using astronaut urine," 31 Mar. 2020 Other common plasticizers, like naphthalene and polycarboxylate, were also mixed with regolith and printed in the same way for comparison. Ashley Strickland, CNN, "Moon bases could be built using astronaut urine," 31 Mar. 2020 The upwind samples registered lower than the downwind side, but both sides showed elevated levels of benzene and naphthalene. Dennis Pillion | Dpillion@al.com, al, "Environmental group reports carcinogens in air near north Birmingham coke plant," 24 Jan. 2020 These chemicals—such as benzene, toluene, naphthalene, anthracene, and phenol—form the basis for perfumes, explosives, and medicines. Akshat Rathi, Quartz, "The science of what makes coal so dirty," 23 Oct. 2019 Additional testing found detectable levels of propanol, acetone, dichlorodifluoromethane, chloromethane, naphthalene in the air as well. Cameron Knight, Cincinnati.com, "Frustrated by months of silence, leaders to hold meeting on Winton Terrace air quality," 12 Dec. 2018 Your grandma's favorite method is on the outs now that many experts consider the chemicals — naphthalene or paradichlorobenzene — a health risk. Caroline Picard, Good Housekeeping, "How to Get Rid of Moths in Every Part of Your Home, According to Experts," 13 Mar. 2019 California already considers the pesticides known carcinogens, and the European Union has banned naphthalene. Caroline Picard, Good Housekeeping, "How to Get Rid of Moths in Every Part of Your Home, According to Experts," 13 Mar. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'naphthalene.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of naphthalene

1821, in the meaning defined above

History and Etymology for naphthalene

alteration of earlier naphthaline, irregular from naphtha

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Time Traveler for naphthalene

Time Traveler

The first known use of naphthalene was in 1821

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Statistics for naphthalene

Cite this Entry

“Naphthalene.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/naphthalene. Accessed 24 Oct. 2020.

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More Definitions for naphthalene

naphthalene

noun
naph·​tha·​lene | \ -ˌlēn How to pronounce naphthalene (audio) \

Medical Definition of naphthalene

: a crystalline aromatic hydrocarbon C10H8 usually obtained by distillation of coal tar and used especially in organic synthesis and formerly as a topical and intestinal antiseptic

Other Words from naphthalene

naphthalenic \ ˌnaf-​thə-​ˈlen-​ik How to pronounce naphthalenic (audio) , ˌnap-​ How to pronounce naphthalenic (audio) , -​ˈlēn-​ \ adjective

More from Merriam-Webster on naphthalene

Nglish: Translation of naphthalene for Spanish Speakers

Britannica.com: Encyclopedia article about naphthalene

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