hemi·​bal·​lis·​mus ˌhem-i-ba-ˈliz-məs How to pronounce hemiballismus (audio)
variants also hemiballism
: violent uncontrollable movements of one lateral half of the body usually due to a lesion in the subthalamic nucleus of the contralateral side of the body

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Cite this Entry

“Hemiballismus.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/hemiballismus. Accessed 10 Dec. 2023.

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