English

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

 

naphthalene

 noun
noun
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 Origin early 19th cent.: from naphtha + -ene, with the insertion of -l- for ease of pronunciation.
See the Oxford Advanced American Dictionary entry: naphthalene