Gun 1 : (1) A fixed monitor nozzle, usually with two or more inlets, mounted on fire apparatus. (2) A high-pressure nozzle that produces a high velocity spray. (3) A gun-type nozzle. See also: Deck Pipe, Turret Pipe
Ralph W. Burklin & Robert G. Purington, Fire Terms: A Guide to Their Meaning and Use, National Protection Association, Boston, MA 1980 USA. (Guide: Meaning and Use, Nat Prot Association Fr Srvc - Amer) {457}