- a tart-tasting drink originally of the Caucasus, made from cow's or sometimes goat's milk to which the bacteria Streptococcus and Lactobacillus have been added.
Origin of kefir
1880–85; < Russian kefír, apparently < a Caucasian language; compare Ossetic kʾæpy, kʾæpu kefir, Mingrelian kipuri milk curdled in an animal skin
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for kefir
In koumiss and kefir the curd is very finely divided and will remain in suspension for a long time as with butter milk.
Koumiss is made in Russia from mare's milk and has much the same composition as kefir.
Several alcoholic drinks made from milk, such as kefir and koumiss, have been originated among the nomadic tribes of Western Asia.