Definition of naphthalene noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˈnæfθəliːn//
; NAmE NAmE//ˈnæfθəliːn//
, also NAmE//ˈnæpθəliːn//
[uncountable] (chemistry)
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a substance used in products that keep moths away from clothes, and in industrial processes Word Originearly 19th cent.: from naphtha + -ene, with the insertion of -l- for ease of pronunciation.
See the Oxford Advanced American Dictionary entry: naphthalene