tompion Meaning, Definition & Usage

  1. noun plug for the muzzle of a gun to keep out dust and moisture
    tampion.

WordNet

Tom"pi*on noun
Etymology
See Tampios
Definitions
  1. A stopper of a cannon or a musket. See Tampion.
  2. (Mus.) A plug in a flute or an organ pipe, to modulate the tone. Knight.
  3. The iron bottom to which grapeshot are fixed.

Webster 1913