graticule

American  

[grat-i-kyool] / ˈgræt ɪˌkyul /

noun

1. Navigation. a network of parallels and meridians on a map or chart.

2. Optics. a reticle.

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graticule British  

/ ˈɡrætɪˌkjuːl /

noun

1. the grid of intersecting lines, esp of latitude and longitude on which a map is drawn

2. another name for reticle

3. a transparent scale in front of a cathode-ray oscilloscope or other measuring instrument

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Etymology

Origin of graticule

1885–90; < French < Latin crāticula, diminutive of crātis. See grate ², -cule ¹