1) Movable artillery 2) Wheeled cannon
Found on
https://www.crosswordclues.com/clue/field-gun
A field gun is an artillery piece. Originally the term referred to smaller guns that could accompany a field army on the march and when in combat could be moved about the battlefield in response to changing circumstances (field artillery), as to opposed guns installed in a fort (garrison artillery/coastal artillery), or to siege cannon or mortars ...
Found on
http://en.wikipedia.org/wiki/Field_gun
small artillery weapon, usually on wheels and easy to move around
Found on
http://www.encyclo.co.uk/local/20771
A shotgun, generally stocked to shoot where it is pointed and of relatively light weight because one often carries it a great distance---the consequent recoil not being an important factor because one actually shoots it very little.
Found on
http://www.hallowellco.com/abbrevia.htm
No exact match found.
