(~s)
A ~ is a substance that is used to cause a chemical reaction. Reagents are often used in order to indicate the presence of another substance. (TECHNICAL)
N-COUNT
(~s)
A ~ is a substance that is used to cause a chemical reaction. Reagents are often used in order to indicate the presence of another substance. (TECHNICAL)
N-COUNT
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012