tremor
involuntary muscle contraction
Physiologic tremor
medical condition
essential tremor
movement disorder causing involuntary tremors, especially in the hand
intention tremor
dyskinetic disorder characterized by a broad, coarse, and low frequency tremor
Wilson disease
multisystem disease due to abnormal accumulation of copper
asterixis
medical condition
fragile X-associated tremor/ataxia syndrome
Fragile X-associated tremor/ataxia syndrome (FXTAS) is a rare neurodegenerative disorder characterized by adult-onset progressive intention tremor and gait ataxia