Longman Dictionary of Contemporary English homepage

Date: 1800-1900
Language: Modern Latin
Origin: Greek, 'separation', from lyein 'to loosen'

dialysis

noun
     
di‧al‧y‧sis [uncountable]
MH the process of taking harmful substances out of someone's blood using a special machine, because their kidneys do not work properly:
on dialysis
He has been on dialysis for the past three years.

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