'Cat's-eye' definitions:
Definition of 'Cat's-eye'
From: GCIDE
- Cat's-eye \Cat's"-eye`\ (k[a^]ts"[imac]`), n. (Min.) A variety of quartz or chalcedony, exhibiting opalescent reflections from within, like the eye of a cat. The name is given to other gems affording like effects, esp. the chrysoberyl. [1913 Webster]