Bat·ter·ing-ram n.
  1. Mil. An engine used in ancient times to beat down the walls of besieged places.
  Note: ☞ It was a large beam, with a head of iron, which was sometimes made to resemble the head of a ram. It was suspended by ropes to a beam supported by posts, and so balanced as to swing backward and forward, and was impelled by men against the wall.
  2. A blacksmith's hammer, suspended, and worked horizontally.
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  Battering-ram
     (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.