Meaning of bastard culverin

bas'tard cul'verin

Pronunciation: [key]
— Mil. Mil.
  1. a 16th-century cannon, smaller than a culverin, firing a shot of between 5 and 8 lb. (11 and 17.6 kg). Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.