(~s)
A ~ in a pipe, tube, or tunnel is an object which blocks it, or the state of being blocked.
...a total ~ in one of the coronary arteries.
N-COUNT: oft N in/of n
(~s)
A ~ in a pipe, tube, or tunnel is an object which blocks it, or the state of being blocked.
...a total ~ in one of the coronary arteries.
N-COUNT: oft N in/of n
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012