a network of fine lines, wires, etc, placed in the focal plane of an optical instrument to assist measurement of the size or position of objects under observation
Also called: graticule
Word origin
C17: from Latin rēticulum a little net, from rēte net
reticle in American English
(ˈrɛtəkəl)
noun
Optics
a network of very fine lines, wires, etc. in the focus of the eyepiece of an optical instrument
Word origin
L reticulum: see reticule
Examples of 'reticle' in a sentence
reticle
He crouched as low as he could and kept the infrared reticle of his Russian-made SA-7 on the approaching jets.