Plug for the muzzle of a gun to keep out dust and moisture

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
early 15c., "plug, bung," from Middle French tampon (15c.), nasalized variant of Old French tapon "piece of cloth to stop a hole" (14c.), a suffixed form of Frankish *tappo "stopper, plug," related to Old High German zapfo and Old English tæppa "stopper" ...

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Tampion \Tam"pi*on\, n. [F. tampon, tapon, tape, of Dutch or German origin. See Tap a pipe or plug, and cf. Tamp , Tampop , Tompion .] [Written also tampeon , and tompion .] A wooden stopper, or plug, as for a cannon or other piece of ordnance, when not ...

Wikipedia Word definitions in Wikipedia
A tampion or tompion (in the Royal Navy) is a wooden plug, or a metal, canvas, rubber, or plastic cover, for the muzzle of a gun or mortar. Tampions can be found on both land-based artillery and naval guns. Naval tampions have developed into works of art. ...

Wiktionary Word definitions in Wiktionary
n. 1 A wooden plug, or a metal or canvas cover for the muzzle of a gun, a cannon or other piece of ordnance when not in use; a stopper; a bung. 2 (context music English) A plug for the upper end of an organ pipe.

WordNet Word definitions in WordNet
n. plug for the muzzle of a gun to keep out dust and moisture