Meaning of MULTIMEDIA in English

I. -ˈmē-dē-ə adjective

Date: 1962

: using, involving, or encompassing several media

a multimedia approach to learning

II. noun plural but singular or plural in construction

Date: 1967

: a technique (as the combining of sound, video, and text) for expressing ideas (as in communication, entertainment, or art) in which several media are employed ; also : something (as software) using or facilitating such a technique

Merriam-Webster's Collegiate English vocabulary.      Энциклопедический словарь английского языка Merriam Webster.