Glossary of Communication Disorder Terms

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.