/ ˈheɪlɒn; NAmE -lɑːn/ noun
( chemistry ) a gas that is made up of carbon and one or more halogens , used especially to stop fires
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WORD ORIGIN
1960s: from halogen + -on .
/ ˈheɪlɒn; NAmE -lɑːn/ noun
( chemistry ) a gas that is made up of carbon and one or more halogens , used especially to stop fires
••
WORD ORIGIN
1960s: from halogen + -on .
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005