The medical ability to perform smooth, rapid, alternating movements; a test of cerebellar function in neurology.
From Greek diadochos (successive) + kinesis (motion). A medical term used to assess neurological coordination and cerebellar health.
When a neurologist asks you to tap your fingers fast or pat your knee quickly, they're secretly testing your cerebellum—if you can't coordinate these alternating movements smoothly, something's wrong with your internal coordination system!
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