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wristdrop

American  
[rist-drop] / ˈrɪstˌdrɒp /
Or wrist-drop

noun

Pathology.
  1. paralysis of the extensor muscles of the hand causing it to droop, due to injuries or some poisons, as lead or arsenic.


Etymology

Origin of wristdrop

First recorded in 1835–45; wrist + drop