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

See Words from the same year
NEW! Time Traveler

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

Learn More about eyecup


Seen and Heard

What made you want to look up eyecup? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

a quick and clever reply

Get Word of the Day daily email!

Test Your Vocabulary

May 2018 Words of the Day Quiz

  • spring-flowers
  • Which is a synonym of raillery?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Add Diction

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!