(~s)
Limestone is a whitish-coloured rock which is used for building and for making cement.
...high ~ cliffs...
The local ~ is very porous.
N-MASS: oft N n
(~s)
Limestone is a whitish-coloured rock which is used for building and for making cement.
...high ~ cliffs...
The local ~ is very porous.
N-MASS: oft N n
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012