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Noun: plowshare  'plaw,she-ur
Usage: N. Amer (elsewhere: ploughshare)
  1. A sharp steel wedge that cuts loose the top layer of soil
    - ploughshare [Brit, Cdn], share

Derived forms: plowshares

Type of: wedge

Part of: moldboard plow [N. Amer], mouldboard plough [Brit, Cdn]

Encyclopedia: Plowshare