howitzer; high-angle gun
Military term for artillery designed to fire shells at a high trajectory, enabling indirect fire over obstacles.
A howitzer can attack targets on the other side of a mountain.
迫撃砲 is a mortar, a type of high-angle weapon, but typically lighter and more portable than a 曲射砲, which often implies a larger, vehicle-towed or self-propelled artillery piece.
Compound of 曲射 (curved fire, high-angle fire) and 砲 (gun, cannon). The term is a technical military coinage, likely from the early 20th century, describing artillery capable of high-trajectory fire.