Definition of multi-activity in English:

multi-activity

Pronunciation /ˌmʌltɪakˈtɪvɪti/ /ˌmʌltɪəkˈtɪvɪti/

adjective

  • Involved or engaged in several activities; specifically offering, equipped for, or involving a variety of sporting or leisure activities.

Origin

1940s; earliest use found in Journal of Educational Sociology.