halogen

名词 n.
中文释义
发音 hălʹə-jən

英文释义

名词 n.
  1. Any element of group 17, i.e. fluorine, chlorine, bromine, iodine, astatine and tennessine.
    — Plant 12 also stored super sacks of bromochloro-5,5-dimethylimidazolidine-2,4-dione (BCDMH), which is a granular solid oxidizer with a halogen odor that, in addition to chlorine gas and hydrogen chloride, can also release bromine gas and hydrogen bromide upon decomposition.
  2. A light fixture in which the filament is surrounded by an atmosphere of a halogen gas.

词形变化

halogens plural

词汇关系

衍生词
dehydrohalogenate dihalogen halogenase halogenate halogenation halogenite halogen lamp halogenoderma halogenous halogen oven halogen stove halon halothane interhalogen nonhalogen organohalogen radiohalogen
相关词
halide halite

词源

From Ancient Greek ἅλς (háls, “salt" or "sea”) + γεν- (gen-), "to produce" (coined by Berzelius in 1842). By surface analysis, halo- (“salt”) + -gen (“forming”).
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