Definition of Huygens eyepiece in English:

Huygens eyepiece

Line breaks: Huy|gens eye|piece

Entry from British & World English dictionary

noun

Optics
A simple eyepiece consisting of two separate planoconvex lenses, used chiefly in refracting telescopes of long focal length.

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Word of the day anomalous
Pronunciation: əˈnɒm(ə)ləs
adjective
deviating from what is standard, normal, or expected