'dispart sight' definitions:

Definition of 'dispart sight'

From: GCIDE

Dispart \Dis*part"\, n.
1. (Gun.) The difference between the thickness of the metal at the mouth and at the breech of a piece of ordnance. [1913 Webster]
On account of the dispart, the line of aim or line of metal, which is in a plane passing through the axis of the gun, always makes a small angle with the axis. --Eng. Cys. [1913 Webster]
2. (Gun.) A piece of metal placed on the muzzle, or near the trunnions, on the top of a piece of ordnance, to make the line of sight parallel to the axis of the bore; -- called also dispart sight, and muzzle sight. [1913 Webster]