(~s)
A ~ is a wheel with teeth around the outer edge that fit into the holes in a chain or a length of film or tape in order to move it round.
N-COUNT
(~s)
A ~ is a wheel with teeth around the outer edge that fit into the holes in a chain or a length of film or tape in order to move it round.
N-COUNT
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012