(~s)
1.
A ~ is a series of chemical changes, each of which causes the next.
N-COUNT
2.
A ~ is a series of events, each of which causes the next.
The powder immediately ignited and set off a ~ of explosions.
N-COUNT
(~s)
1.
A ~ is a series of chemical changes, each of which causes the next.
N-COUNT
2.
A ~ is a series of events, each of which causes the next.
The powder immediately ignited and set off a ~ of explosions.
N-COUNT
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012