eyestone
(noun)
noun
1. A small, lenticular, calcareous body, especially an operculum of a small shell of the family Tubinidae, used to remove a foreign substance from the eye.
2. (mineralogy) Eye agate.
(noun)
1. A small, lenticular, calcareous body, especially an operculum of a small shell of the family Tubinidae, used to remove a foreign substance from the eye.
2. (mineralogy) Eye agate.