Plain English Meaning
It's how an airway or route is drawn and labeled on an en route chart, including its name, direction, distances, altitudes, and the navigation aids and intersections that define it. Everything you need to fly the route is shown in a standard way.
Full Definition
The standardized graphical representation of airways and routes on en route charts, showing the route's identifier, course, distances, navigation aids, intersections, minimum altitudes, and changeover points. Airway/route depiction provides the pilot with all the information needed to navigate along a published airway or route under instrument flight rules.
Context Anchor
Seen on instrument en route charts when a traces the airway or route assigned or planned for a .