Definitions for eyecupˈaɪˌkʌp
Random House Webster's College Dictionary
a device for applying eyewash to the eye, consisting of a cup or glass with a rim shaped to fit snugly around the orbit of the eye.
Origin of eyecup:
eyecup, eyebath, eye cup(noun)
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"
optic cup, eyecup(noun)
(embryology) a two-walled cuplike depression that develops into the pigmented and sensory layers of the retina
a small oval porcelain or glass cup, having a rim curved to fit the orbit of the eye. it is used in the application of liquid remedies to eyes; -- called also eyeglass