from The Century Dictionary and Cyclopedia
- n. The line of collimation marked by cross-wires in the telescope is the line of sight. The telescope is mounted on a horizontal axis so as to provide the necessary elevation for the line of sight corresponding to the range. All recent naval guns are fitted with telescope-sights.
- n. A telescopic glass mounted upon a firearm or a piece of ordnance, and usually adjustable for distance and windage.
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