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Kidney
Either of two bean-shaped excretory organs that filter wastes (especially urea)
from the blood and excrete them and water in urine; urine passes out of the
kidney through ureters to the bladder.
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Kidney
Either of two bean-shaped excretory organs that filter wastes (especially urea)
from the blood and excrete them and water in urine; urine passes out of the
kidney through ureters to the bladder.
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