Share this entry
naphthalene Line breaks: naph¦tha|lene
Pronunciation: /ˈnafθəliːn/

Definition of naphthalene in English:


[mass noun] Chemistry
A volatile white crystalline compound produced by the distillation of coal tar, used in mothballs and as a raw material for chemical manufacture.
Example sentences
  • The raw materials for today's dyes are mainly aromatic hydrocarbons: benzene, toluene, naphthalene, anthracene, pyrene, and others.
  • Common aromatic compounds other than benzene include toluene, naphthalene, and anthracene, all of which are present in coal tar or creosote.
  • In one method, naphthalene is oxidized with vanadium pentoxide to give phthalic anhydride.


Pronunciation: /nafˈθalɪk/
Example sentences
  • The anhydride of naphthalic acid was identified as a urinary metabolite in rats treated orally with acenaphthene.
  • Single crystals of poly (naphthalic anhydride) have been grown using our confined thin film melt polymerization technique.


Early 19th century: from naphtha + -ene, with the insertion of -l- for ease of pronunciation.

Definition of naphthalene in:
Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Subscribe to remove ads and access premium resources