The word "多媒体" is formed by attaching the character "多", meaning "many" or "multiple", directly to the existing compound word "媒体", which means "media" and is itself composed of "媒" (denoting an intermediary or medium) and "体" (meaning body or entity). This combination creates a new term that literally translates to "multiple media", specifically referring to multimedia as an integrated form of content using various formats.