Galilean telescope

noun

a refracting telescope that forms an erect image, consisting of an objective of relatively long focal length that causes light rays to converge and an eyepiece of short focal length that causes them to diverge.

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Origin:
1715–25

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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a stew of meat, vegetables, potatoes, etc.

a fool or simpleton; ninny.

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World English Dictionary

Galilean telescope (ˌɡælɪˈleɪən)

—n
	a type of telescope with a convex objective lens and a concave eyepiece; it produces an erect image and is suitable for terrestrial use

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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