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dystonia

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(dis tō′ne ə)

noun

a lack of normal muscle tone due to disease or infection of the nervous system

Related Forms:

dystonic adjective

See dystonia in American Heritage Dictionary 4

noun

Abnormal tonicity of muscle, characterized by prolonged, repetitive muscle contractions that may cause twisting or jerking movements of the body or a body part.

Related Forms:

dys·tonˈic (-tŏnˈĭk) adjective

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