Lisa. Many have used the term ”Visual Composer”. I have a old Avid manual about the ”Visual Composer”. Intel have used it, and you got SAP NetWeaver Visual Composer, AdLib Visual Composer from 1987, Java Visual Composer and so on... I seen the term used for the Visual editor when it first was released.

But ok, in the WordPress world, Visual Composer is a pretty known plugin (non GPL, and in my opinon a plugin that causing more problems than solving them in the long run).