iliacusPronunciation: /ɪˈlʌɪəkəs/ (also iliacus muscle)Definition of iliacus noun Anatomy a triangular muscle which passes from the pelvis through the groin on either side and, together with the psoas, flexes the hip. Origin: early 17th century: from late Latiniliacus in other Oxford dictionaries Definition of iliacus in the US English dictionary
