prismatic telescope

American  

noun

Surveying.

1. a telescope having an eyepiece at the side or top equipped with a reflecting prism, used for taking sights at steep angles.

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Example Sentences

The simple microscope—Use of the simple microscope in the telescope—The terrestrial telescope—The Galilean telescope—The prismatic telescope—The reflecting telescope—The parabolic mirror—The compound microscope—The magic-lantern—The bioscope—The plane mirror.

From Project Gutenberg