1. [ noun ] (anatomy,zoology) 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
Related terms: excretory_organ apparatus_urogenitalis urinary_system renal_artery arcuate_artery_of_the_kidney renal_cortex venae_interlobulares_renis venae_renis adrenal_gland pelvis renal_vein arcuate_vein_of_the_kidney nephron
2. [ noun ] Last name, frequency rank in the U.S. is 18626