|Easton's Bible Dictionary|
(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 Dictionary
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.
Int. Standard Bible Encyclopedia
Battering-ram (1 Occurrence)
Ezekiel 26:9 And a battering-ram before him he placeth against thy walls, And thy towers he breaketh by his weapons. (YLT)