A tube like opening within a bone

The opening at the tip of the penis, which allows both semen and urine to pass.

The opening at the tip of the penis where urine and semen are discharged.

The opening of the urethra at the end of the glans.

See Urethral Meatus.

The long narrow opening at the front of glans used to pass water and semen (aka "pee-hole").

an opening.

A natural passage or canal, as in the middle meatus.

Latin = passage; adjective - meatal.

passage or opening.

(L. passage or canal): M. (Internal Acoustic): A short passage on the posterior surface of the petrous temporal bone that transmits the facial and vestibulocochlear nerves and the labyrinthine artery.

In anatomy, a meatus is a natural body opening or canal (pl. meatus, or meatuses).