aircraft parking apron; apron
Technical term for the paved area at an airport where aircraft are parked, loaded, or refueled. Not a general word for parking lot.
The aircraft is undergoing maintenance on the apron.
Several passenger planes were lined up on the apron.
Means parking lot for cars, not aircraft. 駐機場 is specifically for airplanes.
Compound of 駐 (ちゅう, 'to park, stay') + 機 (き, 'aircraft') + 場 (じょう, 'place'). A straightforward modern technical term.