Definition of naphthyl in English:

naphthyl

(also naphtyl)

noun

Chemistry
  • Either of two isomeric monovalent radicals, C₁₀H₇—, derived from naphthalene. Usually attributive or as a formative in chemical names.

Origin

Mid 19th century; earliest use found in Proceedings of the Royal Society of London. From naphth- + -yl. With form naphtyl perhaps compare French naphtyl-, combining form, naphtyle, noun.

Pronunciation

naphthyl

/ˈnapθʌɪl//ˈnafθʌɪl//ˈnafθ(ɪ)l/