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1. A small vessel with a rim curved to fit the orbit of the eye; use to apply medicated or cleansing solution to the eyeball
   "an eyecup is called an eyebath in Britain";
   - eyebath, eye cup
    
2. (embryology) a two-walled cuplike depression that develops into the pigmented and sensory layers of the retina
   - optic cup

Derived forms: eyecups, eye cups

Type of: caliculus, calycle, calyculus, vessel