camphor

/ˈkæmfə/

IPA: /K AE1 M F ER0/

noun
  1. 1

    A white transparent waxy crystalline isoprenoid ketone, 1,7,7-trimethylbicyclo[2.2.1]heptan-2-one, with a strong pungent odour, used in pharmacy.

Source: https://en.wiktionary.org/wiki/camphor