rhabdomyolysis UK /ˌɹæb.dəʊ.mʌɪˈɒl.ɪs.ɪs/US /ˌɹæb.doʊ.maɪˈɑl.əs.ɪs/ noun1 •The rapid disintegration of striated muscle tissue accompanied by the excretion of myoglobin in the urine. formsrhabdomyolyses