Cannon
From Tardis Wiki, the free Doctor Who reference
A cannon was an artillery piece that used gunpowder to propel objects forward in an offensive manner.
On Ribos, the Shrieves closed of the catacombs by firing a cannon at the entrance. The resultant rock fall killed Sholakh. (TV: The Ribos Operation)
Ray cannons were utilised during the First Century Universe War. (COMIC: The Time Museum)
