the world > life > the body > external parts of body > head > face > ear > [noun] > cavity (4)
The external opening of the ear canal; = ear opening, n.
A hollow in the external ear in which earwax collects; (also) the external auditory canal. Obsolete.
Anatomy and Zoology. The central concavity of the external ear, which communicates with the auditory meatus; sometimes used for the whole…
Anatomy. The external ear; = concha, n. 4a.