reticle

noun

1. A transparent plate marked with a crosshair, grid, or scale which is used in an optical instrument, etc., to aid in alignment, counting, or measurement of objects being observed; also, the crosshair, grid, or scale on such a plate.
2. A master or template, comprising a pattern of lines and shapes, used in photolithography to create the tiny integrated circuits on a microchip.

   “Near-synonym: photomask (broadly synonymous in context)”

3. (alt-of, alternative, obsolete)Alternative form of reticule (“a little bag”).

   “On the following day Mrs. Kent went into the bed-room; and laid a reticle, which contained the money, upon her bed; and afterwards returned into the sitting-room; leaving the door between that and the bed-room open. After she had remained in the sitting-room about five minutes, she sent Miss S. for the reticle; and it was not to be found.”