The fluid produced by the kidneys, consisting of water and dissolved substances, that is stored in the bladder and discharged through the urethra. (See excretory system.)
urine u·rine (y&oobreve;r'ĭn)
n.
The waste product secreted by the kidneys that in mammals is a fluid that is yellow to amber in color, slightly acidic, and discharged from the body through the urethra.