Huntington's disease
noun
Hun·ting·ton's disease
ˈhən-tiŋ-tənz-
variants
or less commonly Huntington disease
or Huntington's chorea
or Huntington's
: a hereditary brain disorder that is a progressive, neurodegenerative condition marked especially by impairments in thinking and reasoning, disturbances of emotion and behavior, and the involuntary spasmodic movements of chorea and that is associated with the loss or atrophy of nerve cells in the basal ganglia especially of the caudate nucleus and putamen
Note: Huntington's disease is inherited as an autosomal dominant trait requiring only one parent to pass on a copy of the defective gene on a chromosome other than a sex chromosome. While it may have an onset at any age, people most often become symptomatic between 30 to 50 years of age. The most common symptoms of Huntington's disease include depression, irritability, mood swings, deficits in memory and concentration, dementia, difficulty in swallowing, jerky movements, and loss of coordination.
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Merriam-Webster unabridged
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