Tompions - English meaning

noun

A wooden stopper for the muzzle of a gun.

Usage examples:

In this case it was the seaman responsible for opening the tampion who had forgotten to do his job.

noun

A plug for the top of an organ pipe.

noun

A cover made of wood, metal, canvas (= strong, rough cloth), or rubber that goes over the muzzle (= the end, where the bullets come out) of a gun or cannon when the gun is not being used

Usage examples:

Tampions were sometimes put into the chambers of cannons, over the powder, when the chamber was not…