- ureter - either of a pair of thick-walled tubes that carry urine from the kidney to the urinary bladder
--1 is a kind of duct, epithelial duct, canal, channel
--1 is a part ofurinary tract; urogenital system, urogenital apparatus, urinary system, urinary apparatus, genitourinary system, genitourinary apparatus, systema urogenitale, apparatus urogenitalis