diadochokinesis

noun
di·​a·​do·​cho·​ki·​ne·​sis | \ -kə-ˈnē-səs, -kī- How to pronounce diadochokinesis (audio) \
plural diadochokineses\ -​ˌsēz How to pronounce diadochokineses (audio) \

Medical Definition of diadochokinesis