Glossary of Communication Disorder Terms - M

M

Mastoid

back portion of the temporal bone that contains the inner ear.

Mastoid surgery

surgical procedure to remove infection from the mastoid bone.

Meige syndrome

movement disorder that can involve excessive eye blinking (blepharospasm) with involuntary movements of the jaw muscles, lips, and tongue (oromandibular dystonia).

Ménière's disease

inner ear disorder that can affect both hearing and balance. It can cause episodes of vertigo, hearing loss, tinnitus, and the sensation of fullness in the ear.

Meningitis

inflammation of the meninges, the membranes that envelop the brain and the spinal cord; may cause hearing loss or deafness.

Middle ear

part of the ear that includes the eardrum and three tiny bones of the middle ear, ending at the round window that leads to the inner ear.

Misarticulation

inaccurately produced speech sound (phoneme) or sounds.

Motor speech disorders

group of disorders caused by the inability to accurately produce speech sounds (phonemes) because of muscle weakness or incoordination or difficulty performing voluntary muscle movements.