volley gun
volley gun is a multiple-barrel firearm or artillery gun.
Overview
Type of large gun.
In detail
volley gun is a multiple-barrel firearm or artillery gun.
Sources
Each source is named with the standing the house places on it, so the evidence can be weighed rather than taken on trust.
reference work · Reputable secondary · Wikipedia
“Volley gun”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q730016: volley gun
Consult the source