cymophane definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
an opalescent variety of chrysoberyl
Origin: cymo- plush -phane
cymophane definition by American Heritage Dictionary
A variety of chrysoberyl having a shimmering luster and microscopic, needlelike inclusions that reflect a streak of light.
Origin: French : Greek kūma, wave, cyma; see cyma + Greek -phanēs, appearing; see -phane.