9 letters · 12 points in Scrabble
noun a network of fine lines, dots, cross hairs, or wires in the focal plane of the eyepiece of an optical instrument
originBorrowed from French graticule, from Medieval Latin grātīcula, from Latin crāticula (“grating, grill”), from crātis (“hurdle; wickerwork”) (probably from Proto-Indo-European *kréh₂-tis (“fenced handiwork”)) + -cula (feminine form of -culus, a variant of -ulus (“diminutive suffix”)).
Etymology from Wiktionary, CC BY-SA 3.0