3 occurrences in 3 dictionaries
Reference: Battering-ram
American
A military engine for battering walls. A long and solid beam, armed at one end with a metallic ram's-head, was suspended by the middle, and swung violently and repeatedly against the walls of a city or castle, till a breach was made. It was sometimes in the lower part of a wooden tower built upon wheels, and was worked by more than a hundred men; while the upper part of the tower was filled with archers and slingers, Eze 4:2; 21:22.
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Easton
(Eze 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.