eyecup

noun eye·cup \ ˈī-ˌkəp \

Definition of eyecup

1 : a small oval cup with a rim curved to fit the orbit of the eye used for applying liquid remedies to the eyes
2 : optic cup
3 : a usually rubber cup at the eyepiece of an optical instrument (such as binoculars) for keeping out extraneous light

First Known Use of eyecup

1586

in the meaning defined at sense 1

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Medical Dictionary

eyecup

noun eye·cup \ ˈī-ˌkəp \

medical Definition of eyecup

1 : a small oval cup with a rim curved to fit the orbit of the eye used for applying liquid remedies to the eyes
2 : optic cup

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