(also iˌnert ˈgas , ˈrare gas ) noun
( chemistry ) any of a group of gases that do not react with other chemicals. argon , helium , krypton and neon are noble gases.
(also iˌnert ˈgas , ˈrare gas ) noun
( chemistry ) any of a group of gases that do not react with other chemicals. argon , helium , krypton and neon are noble gases.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005