epicondylePronunciation: /ˌɛpɪˈkɒndɪl/Definition of epicondyle noun Anatomy a protuberance above or on the condyle of a long bone, especially either of the two at the elbow end of the humerus. Derivatives epicondylar adjective Origin: mid 19th century: from French épicondyle, modern Latin epicondylus (see epi-, condyle)epicondyle in other Oxford dictionaries Definition of epicondyle in the US English dictionary