What is "dysdiadochokinesia"

alt. The impairment of the ability to perform rapidly alternating movements. n. The impairment of the ability to perform rapidly alternating movements.

Dysdiadochokinesia, dysdiadochokinesis, dysdiadokokinesia, dysdiadokokinesis (from Greek δυς dys "bad", διάδοχος diadochos "succeeding", κίνησις kinesis "movement"), often abbreviated as DDK, is the medical term for an impaired ability to perform rapid, alternating movements (i.e. diadochokinesia). Complete inability is called adiadochokinesia.