rhabdomyolysisPronunciation: /ˌrabdə(ʊ)mʌɪˈɒlɪsɪs/Definition of rhabdomyolysis noun [mass noun] Medicine the destruction of striated muscle cells; (especially in horses) azoturia. Origin: 1950s: from Greek rhabdos 'rod' + myo- + -lysisrhabdomyolysis in other Oxford dictionaries Definition of rhabdomyolysis in the US English dictionary