— urethral , adj.
/yoo ree"threuh/ , n. , pl. urethrae /-three/ , urethras . Anat.
the membranous tube that extends from the urinary bladder to the exterior and that in the male conveys semen as well as urine.
[ 1625-35; ouréthra, equiv. to oure- (see URETER) + -thra n. suffix ]