xanthate 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.
a salt or ester of xanthic acid
xanthate definition by American Heritage Dictionary
A salt of a xanthic acid, especially a simple xanthic acid salt, as of sodium or potassium, used as a flotation collector for copper, silver, and gold.