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prismatic compass
noun
- a hand compass equipped with sights and prisms to permit aiming the instrument at a point and at the same time reading the compass direction of the point.
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Word History and Origins
Origin of prismatic compass1
First recorded in 1850–55
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Example Sentences
The trouble was overcome by building snow-mounds and taking back-angles to them with the prismatic compass.
From Project Gutenberg
Would you mind bringing me out a prismatic compass, and a pound of Raven Mixture.
From Project Gutenberg
Round his person are slung field glasses, a prismatic compass, an empty haversack, and a gas helmet.
From Project Gutenberg
He took his bearings with the prismatic compass, and he reckoned his distance by the mean values obtained from three men pacing.
From Project Gutenberg
Leather cases and straps for theodolite, circle, and prismatic compass.
From Project Gutenberg
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