karyokinesisEnglishOxford New American Dictionarykaryokinesis /ˌkerēəkəˈnēsəs, ˌkɛriəkəˈnisəs / ▸ noun Biology division of a cell nucleus during mitosis. – ORIGIN late 19th century : from karyo- ‘cell nucleus’ + Greek kinēsis ‘movement’ (from kinein ‘to move’).