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Noun: disc plough
Usage: Brit (N. Amer: disc plow)
  1. A plough that consists of a gang of concave steel cutting disks, used for work in hard dry soils
    "The farmer used a disc plough to break up the compacted soil";
    - disc plow [N. Amer]

Derived forms: disc ploughs

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

Encyclopedia: Disc plough