conceptual drawing; conceptual diagram; artist's impression
Refers to a visual representation that conveys an idea, plan, or concept, often used in design, architecture, or presentations.
A conceptual drawing of the new park was released.
This artist's impression conveys the atmosphere of the completed building.
Compound of イメージ (image, concept) and 図 (diagram, drawing). The word follows a common pattern of combining a loanword with a kanji to form a technical or semi-technical term.