camphor

noun2

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, also known as laurel camphor or common/ordinary camphor.
2. •
   a plant-extracted crystalline substance similar to common camphor, especially Borneo camphor.