Definition of menthone in English:

menthone

Pronunciation /ˈmɛnθəʊn/

noun

Chemistry
  • A cyclic ketone which is an oily liquid with an odour of peppermint, occurring in peppermint, geranium, and other essential oils; 2-isopropyl-5-methylcyclohexanone, C ₁₀ H ₁₈ O.

Origin

Late 19th century; earliest use found in Henry Roscoe (1833–1915), chemist and university administrator. From menth- + -one, perhaps after menthene.