D defs.my
Entry 3 senses Webster, 1913

Tompion

· Tom·pi·on · IPA
01 n. A stopper of a cannon or a musket. See Tampion.
  1. 1.
    A stopper of a cannon or a musket. See Tampion. See: Tampion
  2. 2.
    A plug in a flute or an organ pipe, to modulate the tone.(Mus.)
  3. 3.
    The iron bottom to which grapeshot are fixed.