A glass of kefir with strawberries.
kefir 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 thick, sour beverage fermented from cow's milk and usually containing a small amount of alcohol
Origin: Russian ; from Caucasian
kefir definition by American Heritage Dictionary
A creamy drink made of fermented cow's milk.
Origin: Russian, probably ultimately from Old Turkic köpür, (milk) froth, foam, from köpürmäk, to froth, foam.