(nautical, chiefly oil industry) An opening in the base of the hull of a vessel (especially a marine drilling platform), which is used for lowering equipment into the sea below.

Alternative form of rockpool

plural of overflow pool

A bird, the European redshank.

A variety of the game of billiards in which small wooden pins are set up to be knocked down by the balls.

plural of reflecting pool

A water feature consisting of a shallow pool of water with a reflective surface, undisturbed by fountain jets.

A pool that is small in diameter, but deep, usually resulting from erosion by a natural force such as a waterfall or rapids.

plural of birthing pool

(US) A building where visitors pay to play billiards (pool).