onycha

n. [ NL., from L. onyx, -ychis, onyx, also, a kind of mussel, Gr. &unr_;, &unr_;. See Onyx. ] [ 1913 Webster ]

1. An ingredient of the Mosaic incense, probably the operculum of some kind of strombus. Ex. xxx. 34. [ 1913 Webster ]

2. The precious stone called onyx. [ R. ] [ 1913 Webster ]