Plain English Meaning
A glass-screen cockpit. Instead of lots of round dials, the flight information shows up on digital displays that look like flat-panel monitors.
Full Definition
A cockpit instrument system that presents flight information on one or more computer-driven screens rather than on individual mechanical gauges. Primary flight data such as attitude, airspeed, altitude, heading, and vertical speed are displayed on a single integrated screen, with engine and navigation information typically shown on adjacent screens.
Context Anchor
Seen in instrument flying and glass-cockpit discussions, especially when describing how the pilot reads flight information from screens instead of only from round gauges.