Definition of eyepiece in English:

eyepiece

Syllabification: eye·piece
Pronunciation: /ˈīˌpēs
 
/

noun

  • The lens or group of lenses that is closest to the eye in a microscope, telescope, or other optical instrument. Also called eyeglass or ocular.
    More example sentences
    • Now the endoscope consists of a series of rod lens and objective lens, eyepiece lens and optical fibres for illumination.
    • The horizontal length and vertical length of root elongation were measured under an optical microscope with a micrometer eyepiece.
    • I should know, for they do resemble out-of-focus star images at high magnification in a telescope eyepiece.

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Pronunciation: ˌastrə(ʊ)ˈgeɪʃ(ə)n
noun
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