graticule
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graticule
(grat -ă-kyool) A glass plate or cell bearing a grid, cross wires, or graduated scale that is set in the focal plane of the eyepiece of a telescope and is used for positioning or measuring.Collins Dictionary of Astronomy © Market House Books Ltd, 2006
graticule
[′grad·ə‚kyül] (mapping)
A network of lines representing the earth's parallels of latitude and meridians of longitude on a map, chart, or plotting sheet.
(optics)
A scale at the focal plane of an optical instrument to aid in the measurement of objects.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
graticule

Graticules of a gyro gunsight.

Graticules on a globe.
ii. In cartography, a network of lines representing the earth's parallel of latitude and meridians of longitude.
iii. A scale at the focal plane of an optical instrument to aid in the measurement of objects.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved