camphor
/ˈkæmfə(r)/noun
mass noun
1- a white volatile crystalline substance with an aromatic smell and bitter taste, occurring in certain essential oils樟脑, 莰酮。
1.1
- A terpenoid ketone; chem. formula: C10H17O.萜酮; 化学分子式：C10H17O.
词源
Middle English: from Old French camphore or medieval Latin camphora, from Arabic kāfūr, via Malay from Sanskrit karpūra.