'Battlements' in the Bible

And he made in Jerusalem engines, invented by skilful men, to be on the towers and upon the battlements, wherewith to shoot arrows and great stones. And his name spread far abroad; for he was marvellously helped, till he was strong.

a day of the trumpet and alarm, against the fortified cities, and against the high battlements.

I have cut off nations; their battlements are desolate; I have made their streets waste, so that none passeth by; their cities are destroyed, so that there is no man, so that there is no inhabitant.