NITROUS OXIDE


Meaning of NITROUS OXIDE in English

/ ˌnaɪtrəs ˈɒksaɪd; NAmE ˈɑːk-/ (also informal ˈlaughing gas ) noun

[ U ] a gas used especially in the past by dentists to prevent you from feeling pain

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.