Tourette syndrome — also called Tourette's syndrome, Tourette Spectrum (TS), Tourette's disorder, or Gilles de la Tourette syndrome, is a neurological or neurochemical disorder characterized by tics: involuntary, rapid, sudden movements or vocalizations that occur repeatedly in the same way.
The eponym was bestowed by Jean-Martin Charcot after and on behalf of his resident, Georges Edouard Albert Brutus Gilles de la Tourette, (1859 - 1904), French physician and neurologist.