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  1. Dictionary
    kidney
    /ˈkɪdni/

    noun

    • 1. each of a pair of organs in the abdominal cavity of mammals, birds, and reptiles, that excrete urine.
    • 2. nature or temperament: "I hoped that he would not prove of similar kidney"

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  2. en.wikipedia.org › wiki › KidneyKidney - Wikipedia

    Kidney - Wikipedia. In humans, the kidneys are two reddish-brown bean-shaped blood-filtering organs [1] that are a multilobar, multipapillary form of mammalian kidneys, usually without signs of external lobulation.

  3. Mar 1, 2018 · The kidneys are two bean-shaped organs in the renal system. They help the body pass waste as urine. They also help filter blood before sending it back to the heart.

  4. noun. kid· ney ˈkid-nē. plural kidneys. 1. : either of a pair of oval to bean-shaped organs located in the back part of the abdomen near the spine that give off waste products in the form of urine. 2. : an organ of an invertebrate animal that gives off waste.

  5. Jul 22, 2020 · Definition. The kidney is a paired vital organ that removes waste products from the blood and regulates fluid and electrolyte levels within the body. Only one is necessary, but this organ’s importance means that we have two; should one shut down, there is a backup.

  6. KIDNEY definition: 1. either of a pair of small organs in the body that take away waste matter from the blood to…. Learn more.

  7. Nov 3, 2023 · The kidneys are bilateral organs placed retroperitoneally in the upper left and right abdominal quadrants and are part of the urinary system. Their shape resembles a bean, where we can describe the superior and inferior poles, as well as the major convexity pointed laterally, and the minor concavity pointed medially.

  8. Kidney definition: either of a pair of bean-shaped organs in the back part of the abdominal cavity that form and excrete urine, regulate fluid and electrolyte balance, and act as endocrine glands.. See examples of KIDNEY used in a sentence.