stifle2Pronunciation: /ˈstʌɪf(ə)l/ (also stifle joint)Translate stifle | into French | into German | into Italian | into Spanish Definition of stifle noun a joint in the legs of horses, dogs, and other animals, equivalent to the knee in humans. Origin: Middle English: of unknown originstifle in other Oxford dictionaries Definition of stifle in the US English dictionary