(~s)
A ~ is the smallest amount of a chemical substance which can exist by itself.
...the hydrogen bonds between water ~s.
N-COUNT: usu with supp, oft supp N
(~s)
A ~ is the smallest amount of a chemical substance which can exist by itself.
...the hydrogen bonds between water ~s.
N-COUNT: usu with supp, oft supp N
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012