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.]

 

© Webster 1913.

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