Noun eyepiece has 1 sense
  1. eyepiece, ocular - combination of lenses at the viewing end of optical instruments
    --1 is a kind of lens, lense, lens system
    --1 is a part of
     optical telescope; binocular, binoculars, field glasses, opera glasses; light microscope; sight
    --1 has parts: reticle, reticule, graticule
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