| 释义 |
halogen/ˈhælədʒ(ə)n, ˈheil-/n. 1 Chem. any of a group of reactive non-metallic elements (fluorine, chlorine, bromine, iodine, and astatine) which form strongly acidic compounds with hydrogen from which simple salts can be made 【化】卤素 2 (作 attrib.) (of lamps and radiant heat sources) using a filament surrounded by a halogen, usu. iodine vapour (灯丝或光源、热源中的金属丝)周围包围着卤素(通常为碘气)的 □ halogenic /-ˈdʒenik/ adj.[Greek hals halos ‘salt’] |