首页halogenhalogen英英释意

halogen

英 ['hælədʒ(ə)n; 'heɪl-] 美['hælədʒən]
  • n. [化学] 卤素

英英释意


1. any of five related nonmetallic elements (fluorine or chlorine or bromine or iodine or astatine) that are all monovalent and readily form negative ions