eyestone

1 definition found

eyestone - Collaborative International Dictionary of English v.0.48 :

  Eyestone \Eye"stone`\ ([imac]"st[=o]n`), n.
     1. A small, lenticular, calcareous body, esp. an operculum of
        a small marine shell of the family Turbinid[ae], used to
        remove a foreign substance from the eye. It is put into
        the inner corner of the eye under the lid, and allowed to
        work its way out at the outer corner, bringing with it the
        substance.
        [1913 Webster]
  
     2. (Min.) Eye agate. See under Eye.
        [1913 Webster]