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Noun eyecup has 2 senses
- eyecup, eyebath, eye cup - 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"
--1 is a kind of vessel
- optic cup, eyecup - (embryology) a two-walled cuplike depression that develops into the pigmented and sensory layers of the retina
--2 is a kind of calyculus, caliculus, calycle
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