parkinsonism

noun

1. (countable, uncountable)A neurological syndrome characterized by tremor, bradykinesia, rigidity, and postural instability; a condition with the symptoms of Parkinson's disease, regardless of its cause.

   “In 1982, a number of young California drug addicts developed acute and severe parkinsonism after intravenous injection of a synthetic heroin contaminated by MPTP.”

   “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.”

   “Can risperidone cause parkinsonism? What evidence suggests that J.R. has antipsychotic-induced parkinsonism?”

2. (alt-of, countable, uncountable)Alternative letter-case form of parkinsonism.

   “[…] a famous case, in the 1890s, in which the development of a one-sided Parkinsonism was correlated with the growth of a tuberculoma of one cerebral peduncle […]”