kefirA fermented milk drink prepared by inoculating cow, goat, or sheep milk with kefir grains.Check for active clinical trials using this agentView this agent in the NCI ThesaurusSynonym:kephirSearch NCI's Drug DictionaryStarts withContainsPlease enter up to 30 characters for your searchBrowse:ABCDEFGHIJKLMNOPQRSTUVWXYZ#