acoustic meatus, auditory canal, auditory meatus, ear canal, external auditory canal - either of the passages in the outer ear from the auricle to the tympanic membrane

external organ - an organ that is situated on or near the surface of the body

auditory apparatus - all of the components of the organ of hearing including the outer and middle and inner ears

auricle, pinna, ear - the externally visible cartilaginous structure of the external ear