RELATED WORDS
PARAPHRASING
1) the artificial process of removing waste products from the blood, e.g. when the kidneys are not working (dialysis)
not valid; invalidate; weak or disabled because of illness or injury; suitable for invalid persons
worthless; unfounded
(of behaviour etc) morally bad, illegal, unjust; (of facts, reasons, time etc) not correct; untrue; not at all suitable
incorrect