GRATICULE
\ɡɹˈatɪkjˌuːl], \ɡɹˈatɪkjˌuːl], \ɡ_ɹ_ˈa_t_ɪ_k_j_ˌuː_l]\
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a network of fine lines, dots, cross hairs, or wires in the focal plane of the eyepiece of an optical instrument
By Princeton University
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a network of fine lines, dots, cross hairs, or wires in the focal plane of the eyepiece of an optical instrument
By DataStellar Co., Ltd
Word of the day
Plimsoll Line
- waterlines to show level water should reach when the ship is properly loaded