urinary tractn. A continuous anatomical tract, including the kidneys, ureters, and urethra, involved in the formation and excretion of urine. | urinary tract adult human urinary tract |
urinary tract The series of organs in the urinary system in which urine is formed and excreted. In most vertebrates, the urinary tract consists mainly of the kidneys, ureters, and bladder. In most mammals, and some fish and birds, the urinary tract also includes the urethra. | urinary tract |
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| Noun | 1. | urinary tract - the organs and tubes involved in the production and excretion of urinekidney - 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" tract - a system of body parts that together serve some particular purpose ureter - either of a pair of thick-walled tubes that carry urine from the kidney to the urinary bladder urethra - duct through which urine is discharged in most mammals and which serves as the male genital duct |