sardonyx Hear it!

sardonyx definition

sar·donyx (sär dän′iks, sär′də niks)

noun

a variety of onyx made up of alternating layers of white chalcedony and sard, used as a gem, esp. in making cameos

Etymology: ME < L < Gr sardonyx < sardios, sard + onyx, onyx

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

Comments
Improve this definition.
Do you have more to add? Share your linguistic knowledge or observation.
/Register to save your comments.