distal urethra

Definition of distal urethra
National Cancer Institute

distal urethra

(DIS-tul yoo-REE-thruh)
The part of the urethra closest to the outside of the body. The urethra is the tube through which urine leaves the body. In women, the distal urethra is approximately the last ½ inch, and in men it is the part of the urethra in the penis.

Source: NCI Dictionary of Cancer Terms