Plain English Meaning
The built-in libraries of aviation information that your cockpit displays and apps pull from to show you airports, frequencies, runways, and procedures.
Full Definition
Digital collections of aviation data — such as airports, navaids, airways, approach procedures, frequencies, and terrain — stored within an avionics system or electronic flight bag and used by the equipment to display information, support navigation, and run features like Nearest Airport searches.
Context Anchor
Seen when using a primary flight display () or other cockpit display to find nearby airports, airport details, or using stored aviation data.