batteringram

from The Collaborative International Dictionary of English v.0.48
Battering-ram \Bat"ter*ing-ram`\, n.
   1. (Mil.) An engine used in ancient times to beat down the
      walls of besieged places.
      [1913 Webster]

   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. --Grose.
         [1913 Webster]

   2. A blacksmith's hammer, suspended, and worked horizontally.
      [1913 Webster]
    
from Easton's 1897 Bible Dictionary
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.
    

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