無む反はん動どう銃じゅう

noun

recoilless rifle

A military term for a lightweight artillery piece that vents propellant gases to the rear to eliminate recoil.

• 無む反はん動どう銃じゅうは、発はっ射しゃ時じの反はん動どうを排はい気きで相そう殺さいする火か器きである。

  A recoilless rifle is a firearm that cancels out recoil at the moment of firing by venting exhaust gases.