kidneys

Cultural  

1. A pair of organs, the principal parts of the excretory system, located above the waistline at the back of the abdominal cavity. The kidneys filter waste materials from the blood, excreting these wastes in the form of urine; they also regulate the amounts of water and other chemicals in body fluids.

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Example Sentences

As his condition declined, his lungs, heart, and kidneys began to fail.

From Science Daily • Mar. 18, 2026

Maya, 16, from Hadleigh in south Essex, had the transplant on 6 January after suffering severe damage to her kidneys following an e-coli infection two years earlier.

From BBC • Mar. 16, 2026

Kidneys require gravity to function properly, and the longer people spend in space, the more their kidneys start to malfunction.

From Slate • Mar. 1, 2026

He explained: "I got Covid in hospital, my kidneys started to back up, everything that could all seemed to sort of converge at the same time. And I had five operations on my knee."

From BBC • Feb. 25, 2026

Takes like three or four hours, and leaves her super tired, but she gotta do it because the sugar also broke her kidneys, and when your kidneys don't work, your blood gets dirty.

From "Patina" by Jason Reynolds