/ əˈməʊniəm; NAmE əˈmoʊ-/ noun
[ U ] ( chemistry ) a salt made from ammonia containing nitrogen and hydrogen together with another element
••
WORD ORIGIN
early 19th cent.: from ammonia + -ium .
/ əˈməʊniəm; NAmE əˈmoʊ-/ noun
[ U ] ( chemistry ) a salt made from ammonia containing nitrogen and hydrogen together with another element
••
WORD ORIGIN
early 19th cent.: from ammonia + -ium .
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005