D defs.my
Entry 1 sense Webster, 1913

Plowshare

/ploush'-ārˌ/ · Plow·share · IPA /plˈaʊʃˌeɪr/
01 n. The share of a plow, or that part which cuts the slice of earth or sod at the bottom of the furrow.
  1. 1.
    The share of a plow, or that part which cuts the slice of earth or sod at the bottom of the furrow.
Phrases & compounds
Plowshare bone — the pygostyle.