Webster's 1913 Dictionary
GRATICULATION
Gra *tic "u *la "tion, n. Etym: [F. graticulation, craticulation, fr. graticuler, craticuler, to square, fr. graticule, craticule, graticule, L. craticula, dim. of crates wickerwork. See 2d Grate. ]
Defn: The division of a design or draught into squares, in order the more easily to reproduce it in larger or smaller dimensions.