Definition of eyepiece in English:

eyepiece

Line breaks: eye|piece
Pronunciation: /ˈʌɪpiːs
 
/

noun

The lens or group of lenses that is closest to the eye in a microscope, telescope, or other optical instrument. Also called 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.

Definition of eyepiece in:

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Word of the day apposite
Pronunciation: ˈapəzit
adjective
apt in the circumstances or relation to something