The first, and largest, of the three tiny middle ear bones. It is the bone touching the eardrum. Technically called the Malleus.
Half-shell Hearing Aid
A style of hearing aid that is a bit larger than a canal aid, but is smaller than an ITE aid.
Hair Cells
Sensory cells in the inner ear where nerve endings attach to the auditory or vestibular nerves. Hair cells within the cochlea convert sound waves into electrical (nerve) impulses that are carried by the brain. Hair cells in the vestibular labyrinth respond to motion.
HAC
See Hearing Aid Compatible.
Habituation
Habituation is the term used when you are no longer aware of your tinnitus except when you focus your attention on it. When habituation occurs, your tinnitus is no longer intrusive and annoying. It is just “there”.
Glomus Jugulare Tumor
A tumor that may grow in the middle ear and can interfere with the vibration of the middle ear bones (ossicles).