grat|i|cule

grat|i|cule «GRAT uh kyool», noun.

1. a) a design or plan divided into squares to facilitate copying. b) the network of lines or curves representing meridians and parallels on a map or chart.

2. a) a measuring scale in the eyepiece of a telescope, microscope, or other optical instrument, for the location of objects in the field of view. b) the glass disk or plate bearing this scale.

╂[< French graticule < Medieval Latin graticula, craticula (diminutive) < Latin crātis; see etym. under grate¹ (Cf. ↑grate)]