Noun | 1. | reticle - a network of fine lines, dots, cross hairs, or wires in the focal plane of the eyepiece of an optical instrument cross hair, cross wire - either of two fine mutually perpendicular lines that cross in the focus plane of an optical instrument and are use for sighting or calibration; "he had the target in his cross hairs" network - a system of intersecting lines or channels; "a railroad network"; "a network of canals" |