Definition of "parkinsonism"

parkinsonism

noun
countable and uncountable, plural parkinsonisms
1. (neurology, pathology) A neurological syndrome characterized by tremor, bradykinesia, rigidity, and postural instability; a condition with the symptoms of Parkinson's disease, regardless of its cause.
  Quotations
  In 1982, a number of young California drug addicts developed acute and severe parkinsonism after intravenous injection of a synthetic heroin contaminated by MPTP.
  2004, Walter George Bradley, Neurology in Clinical Practice: The neurological disorders, Taylor & Francis, page 2144
  However, it is important for the clinician to consider alternative diagnoses, particularly treatable, potentially reversible syndromes such as drug-induced parkinsonism, hydrocephalus and other structural abnormalities, Wilson's disease, and some forms of toxic, metabolic, and infectious parkinsonism.
  2011, Carlo Colosimo, David E. Riley, Gregor K. Wenning, Handbook of Atypical Parkinsonism, Cambridge University Press, page 112
  Can risperidone cause parkinsonism? What evidence suggests that J.R. has antipsychotic-induced parkinsonism?
  2012, Brian K. Alldredge, Robin L. Corelli, Michael E. Ernst, Koda-Kimble and Young's Applied Therapeutics: The Clinical Use of Drugs, Lippincott Williams & Wilkins, page 1939