battering ram

Meaning

  1. (historical) A heavy object used for battering down walls and gates or a siege engine that includes such an object.
  2. A modern device, usually in the form of a metal bar with handles, chiefly used by police and firefighters to force open locked doors.
  3. (figuratively) Something which acts as a powerful tool against something.

Etymology

The heads of some battering rams were carved in the shape of a ram, an animal renowned for butting with its head.

Notes

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