The Collaborative International Dictionary of English v.0.48:

Reticle \Ret"i*cle\, n. [See Reticule.]
   1. A small net.
      [1913 Webster]

   2. A reticule. See Reticule, 2. [R.]
      [1913 Webster]

WordNet (r) 3.0 (2006):

reticle
    n 1: a network of fine lines, dots, cross hairs, or wires in the
         focal plane of the eyepiece of an optical instrument [syn:
         reticle, reticule, graticule]

Moby Thesaurus II by Grady Ward, 1.0:

56 Moby Thesaurus words for "reticle":
   arabesque, basketry, basketwork, cancellation, cross-hatching,
   crossing-out, filigree, fret, fretwork, grate, grating, grid,
   gridiron, grille, grillwork, hachure, hatching, interlacement,
   intertexture, intertwinement, lace, lacery, lacework, lacing,
   lattice, latticework, mesh, meshes, meshwork, net, netting,
   network, plexure, plexus, raddle, reticulation, reticule,
   reticulum, riddle, screen, screening, sieve, texture, tissue,
   tracery, trellis, trelliswork, wattle, weave, weaving, web,
   webbing, webwork, weft, wicker, wickerwork