Star gauge Meaning, Definition & Usage

Definitions
  1. (Ordnance), an instrument for measuring the diameter of the bore of a cannon at any point of its length.
Definitions
  1. (Ordnance), a long rod, with adjustable points projecting radially at its end, for measuring the size of different parts of the bore of a gun.
  2. (Ordnance), an instrument for measuring the diameter of the bore of a cannon at any point of its length.

Webster 1913