supergun

(redirected from Monster cannon)

su·per·gun

 (so͞o′pər-gŭn′)
n.
An extremely large, cannonlike gun designed to shoot projectiles over long distances or to launch satellites and spacecraft into orbit without a propulsion or guidance system, as is needed with a missile.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

supergun

(ˈsuːpəˌɡʌn)
n
(Firearms, Gunnery, Ordnance & Artillery) any extremely powerful gun
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
It depicts real events: the raising of a giant chain across the entrance to the Golden Horn inlet to block Ottoman ships, the overland transfer of Ottoman vessels on wooden rollers to the harbor, and the construction of a monster cannon to punch holes in the city walls.