Definition of narceine in US English:

narceine

noun

Chemistry
  • A narcotic tricyclic crystalline alkaloid, C₂₃H₂₇NO₈, obtained from opium or narcotine and formerly used as a painkiller.

Origin

Mid 19th century; earliest use found in Reports of the British Association for the Advancement of Science. From French narcéine from ancient Greek νάρκη numbness + French -ine.

Pronunciation

narceine

/ˈnɑːsɪɪn/