yogurt UK /ˈjɒɡ.ət/US /ˈjoʊ.ɡɚt/ noun2 •A milk-based product stiffened by a bacterium-aided curdling process, and sometimes mixed with fruit or other flavoring.Moroccan curried crab and streaks of minty, lemony yogurt add luxury to a supersimple zucchini soup ($14). — 2009 •[in compounds] Any similar product based on other substances (e.g. soy yogurt). formsyogurts