Plain English Meaning
The full set of electronic gear in the cockpit — the screens, radios, navigation receivers, and autopilot — built to operate together as one connected system.
Full Definition
The integrated suite of electronic equipment installed in an aircraft that handles navigation, communication, flight instruments, autopilot, and related functions, designed to work together as a single coordinated system.
Context Anchor
Seen when comparing how different avionics manufacturers handle instrument procedures, cockpit displays, flight planning, and pilot controls.