The medical term for pertaining to sound is "auditory."
Acoustic neuroma is a tumor of the auditory nerve.
Impacted cerumen
Otitis externa is the medical term for an infection of the external auditory canal, also known as swimmer's ear. Symptoms can include pain, itching, and redness of the ear canal. Treatment typically involves antibiotic ear drops.
The hair cells are the auditory receptors located in the cochlea. These receptors are found in the organ of Corti.
Vestibulocochlear is the term for the nerve that carries sound and balance information to the brain from the ear.
Hypoacusis is the medical term meaning hearing loss.
Transdermal is another term meaning topical.
Inferior is the medical term meaning below; the medical terminology combining form is infra-.
Hemosiderosis is a close term to hemochromatosis. Iron overload is another name.
The term you are looking for is otosclerosis. It is a condition where there is abnormal bone growth in the middle ear, specifically around the stapes bone. This can lead to hearing loss by interfering with the transmission of sound waves in the ear.
Another term for "skull" is "cranium," which refers to the part of the skeleton that encloses the brain.