terrestrial telescope

WordReference Random House Unabridged Dictionary of American English © 2026

terres′trial tel′escope, 

1. Optics a refracting telescope having inverting lenses or an eyepiece that presents an erect image.

• 1805–15

Collins Concise English Dictionary © HarperCollins Publishers::

terrestrial telescope noun

1. a telescope for use on earth rather than for making astronomical observations. Such telescopes contain an additional lens or prism system to produce an erect image