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English definition of “kidney”

kidney

noun uk   /ˈkɪd.ni/ us  
C2 [C] either of a pair of small organs in the body that take away waste matter from the blood to produce urine: kidney failure [C or U] these organs from an animal, used as food: steak and kidney pie
(Definition of kidney from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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