bony part of external acoustic meatus

bon·y part of ex·ter·nal a·cous·tic me·a·tus

the medial two thirds of the external acoustic meatus, which is formed as the tympanic plate of the temporal bone develops; it extends approximately 16 mm from its junction with the cartilaginous part to the tympanic membrane.

bon·y part of ex·ter·nal a·cous·tic me·a·tus

(bōnē pahrt eks-tĕrnăl ă-kūstik mē-ātŭs)
Medial two thirds of external acoustic meatus, which is formed as the tympanic plate of the temporal bone develops.
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