(Ezek. 4:2; 21:22), a military engine, consisting of a long beam of wood hung upon a frame, for making breaches in walls. The end of it which was brought against the wall was shaped like a ram's head.

Noah Webster's New International Dictionary of the English Language

1. (n.) An engine used in ancient times to beat down the walls of besieged places.

2. (n.) A blacksmith's hammer, suspended, and worked horizontally.