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prismatic compass

American  

noun

  1. 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.


Etymology

Origin of prismatic compass

First recorded in 1850–55

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The trouble was overcome by building snow-mounds and taking back-angles to them with the prismatic compass.

From The Home of the Blizzard Being the Story of the Australasian Antarctic Expedition, 1911-1914 by Mawson, Douglas, Sir

Leather cases and straps for theodolite, circle, and prismatic compass.

From Successful Exploration Through the Interior of Australia by Wills, William John

Kingozi seated himself on a flat rock and at once began to take sights through a prismatic compass, entering the observations in a pocketbook.

From The Leopard Woman by White, Stewart Edward

Officers carried revolvers, field glasses, prismatic compass, and various other extras.

From The 28th: A Record of War Service in the Australian Imperial Force, 1915-19, Vol. I Egypt, Gallipoli, Lemnos Island, Sinai Peninsula by Collett, Herbert Brayley

He was a familiar figure at the outposts, on his steadily ambling nag, armed with his prismatic compass, his odometer, and his sketch-book.

From Military Reminiscences of the Civil War, Volume 2 November 1863-June 1865 by Cox, Jacob Dolson

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