Definitions for: Onycha

Webster (1913) Definition: On"y*cha, n. [NL., from L. onyx, -ychis, onyx, also, a
kind of mussel, Gr. ?, ?. See Onyx.]
1. An ingredient of the Mosaic incense, probably the
operculum of some kind of strombus. --Ex. xxx. 34.

2. The precious stone called onyx. [R.]