Definition
A display page on a Multi-Function Display (MFD) that shows the aircraft's current position on an electronic chart, with the chart shifting beneath an aircraft symbol as the airplane moves. It typically overlays navigation data such as the active flight plan, nearby airports, navaids, airspace boundaries, terrain, and weather.
Plain English
A screen in the cockpit that shows a map with your airplane on it. As you fly, the map slides under the little airplane symbol so you can always see where you are and what's around you.
Context Anchor
Seen when navigating GPS or multi-function display page groups, especially before using features such as the nearest airport function.
Derivation
Called 'moving map' because the map itself appears to move under a fixed aircraft symbol, rather than the symbol moving across a static map. The name describes what the pilot sees on the screen.
Why Pilots Care
It gives immediate visual awareness of position and nearby airports or waypoints during instrument flight.
Intuition Check
The map page itself is not physically moving. The display updates as the aircraft moves, so the pilot sees a current map view instead of a fixed picture.
Example Sentence 1
After takeoff, the pilot selected the moving map page on the MFD to monitor the flight plan and nearby airspace.
Example Sentence 2
On the moving map page the route appeared as a line leading directly to the destination airport.