Plain English Meaning
How steeply the aircraft descends toward the runway during the final part of the approach, expressed as an angle above level ground.
Full Definition
The angle, measured in degrees, between the descending flight path used for landing approach and the horizontal plane of the runway. For a standard ILS approach, the glidepath angle is typically 3 degrees.
Context Anchor
Seen on approach charts, in approach briefings, and when using visual or instrument guidance to stay on the proper path to the runway.