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

Ultrasounds are also heavily relied on to diagnose cancers and check on organs such as the liver, kidneys and spleen.

From BBC • Mar. 28, 2026

Zanib, 34, had a successful lung transplant in Manchester in January 2020, but five years later her kidneys began to fail and she was admitted to intensive care.

From BBC • Mar. 24, 2026

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

From Science Daily • Mar. 18, 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

Tumors the size of baseballs had nearly replaced her kidneys, bladder, ovaries, and uterus.

From "The Immortal Life of Henrietta Lacks" by Rebecca Skloot