a sea-port town of Scotland, and one of the ports of the city of Glasgow. It is distant 22 miles from that city; and was formerly called the Bay of St Laurence. The Frith of Clyde here expands into a fine basin four miles wide, and is landlocked on all sides. Greenock is a burgh of barony, and the best built town on all the coast. It is the chief resort of the herring fishery, and otherwise a place of great trade and very populous.—The harbour was made by Sir John Shaw of Greenock, whose ancestor built the church; and the family had here a castle.