laterality

noun
lat·​er·​al·​i·​ty | \ ˌlat-ə-ˈral-ət-ē How to pronounce laterality (audio) \
plural lateralities

Medical Definition of laterality

: preference in use of homologous parts on one lateral half of the body over those on the other : dominance in function of one of a pair of lateral homologous parts studies of the laterality of individuals in the performance of different tasks— K. C. Garrison