what is a reticule?
â¢ RETICULE (noun). The noun RETICULE has 2 senses: 1. a woman's drawstring handbag; usually made of net or beading or brocade; used in 18th and 19th centuries. 2. a network of fine lines, dots, cross hairs, or wires in the focal plane of the eyepiece of an optical instrument. Familiarity information: RETICULE used as a noun is rare. Dictionary entry details. â¢ RETICULE (noun).