Dictionary

eyepiece

noun eye·piece \ˈī-ˌpēs\

: the part of a telescope or microscope that you look through

Full Definition of EYEPIECE

:  the lens or combination of lenses at the eye end of an optical instrument

First Known Use of EYEPIECE

1790

eyepiece

noun eye·piece \ˈī-ˌpēs\   (Medical Dictionary)

Medical Definition of EYEPIECE

:  the lens or combination of lenses at the eye end of an optical instrument—called also ocular

Illustration of EYEPIECE

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May 23, 2015
debouch Hear it
to emerge or cause to emerge
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