Wordnet 3.0
NOUN (1)
1.
either of a pair of thick-walled tubes that carry urine from the kidney to the urinary bladder;
The Collaborative International Dictionary of English v.0.48:
Ureter \U*re"ter\ (?; 277), n. [NL., fr. Gr. ?. See Urine.]
(Anat.)
The duct which conveys the urine from the kidney to the
bladder or cloaca. There are two ureters, one for each
kidney.
[1913 Webster]
WordNet (r) 3.0 (2006):
ureter
n 1: either of a pair of thick-walled tubes that carry urine
from the kidney to the urinary bladder