noun
kidney failure; renal failure
Medical term for the condition where the kidneys lose function. Used in both acute and chronic contexts.
彼は慢性腎不全で透析を受けている。
He is on dialysis due to chronic kidney failure.
急性腎不全は早期治療が重要だ。
Early treatment is important for acute renal failure.
透析 is 'dialysis', a common treatment for 腎不全.
Compound of 腎 (kidney) and 不全 (insufficiency, failure). The term is a direct medical calque from Western medicine.