dialysis
noun [ U ] medical, chemistry specialized uk/daɪˈæl.ə.sɪs/ us/daɪˈæl.ə.sɪs/
渗析，透析，（尤指对肾病患者做的）血液透析
a process of separating substances from liquid by putting them through a thin piece of skin-like material, especially to make pure the blood of people whose kidneys are not working correctly
a dialysis machine 透析机
kidney dialysis 肾透析
She is on (= being treated by) dialysis. 她在接受透析治疗。