noun Chemistry, Pharmacology.
- a whitish, translucent, crystalline, pleasant-odored terpene ketone, C10H16O, obtained from the camphor tree, used chiefly in the manufacture of celluloid and in medicine as a counter-irritant for infections and in the treatment of pain and itching.
- any substance having medicinal or aromatic characteristics similar to those of camphor.
- a whitish crystalline aromatic terpene ketone obtained from the wood of the camphor tree or made from pinene: used in the manufacture of celluloid and in medicine as a liniment and treatment for colds. Formula: C 10 H 16 O
substance extensively used in medicine, early 14c., caumfre, from Old French camphre, from Medieval Latin camfora, from Arabic kafur, perhaps via Sanskrit karpuram, from Malay kapur “camphor tree.” Related: Camphorated.
- An aromatic crystalline compound obtained from the wood or leaves of the camphor tree or synthesized and used as an insect repellent and in external preparations to relieve mild pain and itching.
- A white, gumlike, crystalline compound that has a strong odor. Camphor is volatile and is used as an insect repellent and in making plastics and explosives. Chemical formula: C10H16O.