grat·i·cule 
(grătĭ-kyl′)
(grătĭ-kyl′)n.
1. See reticle.
2. A grid of longitudinal and latitudinal lines, on which maps are drawn.
[French graticule, grid, from Italian graticola, gridiron for broiling food, grid, from Latin crātīcula, small gridiron; see GRIDDLE.]
- perineal
- perinephral
- perinephrial
- perinephric
- perinephrium
- perineum
- perineurial
- perineurium
- period
- periodic
- periodic acid
- periodical
- periodical cicada
- periodically
- periodic attractor
- periodicity
- periodic law
- periodic motion
- periodic sentence
- Periodic Table
- periodontal
- periodontally
- periodontia
- periodontic
- periodontical