graticule
- noun
- /ˈɡrætɪˌkjuːl/
- Specialized
- The graticule helps astronomers locate stars more accurately.
Examples
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The telescope’s graticule made it easier to estimate the distance between stars.
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The microscope’s graticule helped the biologist measure tiny cellular structures with precision.
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She adjusted the graticule so the crosshairs aligned perfectly with the specimen.
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Can you see the graticule in the telescope?
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In the microscope, the graticule helps scientists measure the size of tiny specimens accurately.
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Astronomers rely on the graticule to precisely locate stars and planets in the night sky.
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The engineer checked the alignment of the laser using the graticule in the optical device.
Synonyms
A pattern of fine lines or dots in an eyepiece that helps you aim and measure
A set of fine lines in an eyepiece that help aim and measure
A grid of fine lines placed over an image to help measure or align it
Surface Forms
Etymology
Graticule comes from an old Latin word craticula meaning 'small grate' or 'little grid'. So a graticule is like a tiny grid or 'grate' placed in an eyepiece to help you measure and line things up.