释义 |
per·y·lene \ˈperəˌlēn\ noun (-s) Etymology: peri-di-naphthylene : a yellow crystalline aromatic hydrocarbon C20H12 that is constituted of two naphthalene residues joined to each other through the peri-positions, that is found in small amounts in coal tar, and that can be made from naphthalene by the action of aluminum chloride |