QUADRANT n.
An instrument for measuring altitudes, variously constructed and mounted for different specific uses in astronomy, surveying, gunnery, etc., consisting commonly of a graduated arc of 90º, with an index or vernier, and either plain or telescopic sights, and usually having a plumb line or spirit level for fixing the vert…
RANGE n.
me from the far point. -- Range finder (Gunnery), an instrument, or apparatus, variously constructed, for ascertaining the distance of an inaccessible object, -- used to determine what elevation must be given to a gun in order to hit the object; a position finder. -- Range of cable (Naut.), a certain length of slack…
REDOUBT n.
A small, and usually a roughly constructed, fort or outwork of varying shape, commonly erected for a temporary purpose, and without flanking defenses, -- used esp. in fortifying tops of hills and passes, and positions in hostile territory.
REFRIGERATOR n.
iquids or vapors, connected with a still, etc. Refrigerator car (Railroad), a freight car constructed as a refrigerator, for the transportation of fresh meats, fish, etc., in a temperature kept cool by ice.