The portion of a graduated tool as a quadrant or astrolabe carrying the sights or telescope and showing the levels take off regarding the arc for the instrument
- surveying instrument consisting of the upper movable part of a theodolite including the telescope and its attachments
- surveying tool used in combination with a plane dining table for drawing outlines of picture on a distant item and measuring sides
- The percentage of a graduated instrument, as a quadrant or astrolabe, holding the sights or telescope, and showing the levels cut off regarding arc of this tool
(n.) The part of a graduated instrument, as a quadrant or astrolabe, holding the sights or telescope, and showing the levels cut off regarding the arc associated with the tool
THEODOLITE,' a surveying instrument consisting of two graduated circles placed at right angles to each other, for the measurement of horizontal and vertical angles, a telescope, which turns on axes mounted centrically to the circles, and an alidade for each circle, which carries two or more verniers.