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erecting prism

American  

noun

Optics.
  1. Dove prism.


Etymology

Origin of erecting prism

First recorded in 1870–75


Example Sentences

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The boy knew there was an erecting prism in the case, a device that would put the image upright, but it couldn't be used with the camera.

From The Flying Stingaree by Harold L. (Harold Leland) Goodwin

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