Definition of kefir
: a beverage of fermented cow's milk
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Recent Examples of kefir from the Web
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Leafy greens like kale are the best source of calcium, but sardines, broccoli and high-quality yogurt or kefir are good options.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'kefir'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of kefir
Russian
First Known Use: 1884
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