The Collaborative International Dictionary of English v.0.48:

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