“Multimedia” is an old term (Bob Goldstein, 1966) that refers to the fact of mobilizing together several media (text, still or moving image, sound, interactivity...). The use of the Internet is essentially multimedia. There are regular attempts to modernize the term: content-360, cross-media, transmedia, webdocumentary, new media... but each time, good old “multimedia” remains the most appropriate word to describe projects that mobilize several media.
Almost all my activity is “multimedia”. You will find here projects in which the singular technical question is asked.