/ riˈeɪdʒənt; NAmE / noun
( chemistry ) a substance used to cause a chemical reaction, especially in order to find out if another substance is present
/ riˈeɪdʒənt; NAmE / noun
( chemistry ) a substance used to cause a chemical reaction, especially in order to find out if another substance is present
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005