- 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.
- a corresponding organ in other vertebrate animals or an organ of like function in invertebrates.
- the meat of an animal's kidney used as food.
- constitution or temperament: He was a quiet child, of a different kidney from his boisterous brothers.
- kind, sort, or class: He is only at ease with men of his own kidney.
- either of two bean-shaped organs at the back of the abdominal cavity in man, one on each side of the spinal column. They maintain water and electrolyte balance and filter waste products from the blood, which are excreted as urine
- the corresponding organ in other animals
- the kidneys of certain animals used as food
- class, type, or disposition (esp in the phrases of the same or a different kidney)
