Definitions

1. noun

A small, shallow cup or container, typically made of plastic or metal, used for washing one’s eyes or face.

“She used the eyecup to clean the dirt out of her eye after the accident.”

2. noun

A cup-shaped depression or recess in a surface, such as a rock or a cliff, that can catch and hold water or other substances.

“The hikers followed the stream through a series of eyecups in the rocky terrain.”