howitzers is a form of:

Howitzer



noun
1.
(a short cannon, firing shells at a high trajectory) កាំភ្លើងបាញ់គ្រាប់បែក
ENGLISH MEANING
noun
1.
A gun so short that the projectile, which was hollow, could be put in its place by hand; a kind of mortar.
2.
A short, light, largebore cannon, usually having a chamber of smaller diameter than the rest of the bore, and intended to throw large projectiles with comparatively small charges.