landing gear

plural landing gears

1. countableuncountableaeronauticsThe wheels, tyres, brakes, shock absorbers etc of an aircraft.

   Modern landing gear usually has a tricycle configuration.

   2 more examples

   Boeing had a problem of too much landing gear

   1954, “Where Do All the Wheels Go on a B-52?”, in American Aviation, volume 18, page 42

   The comparison between the tricycle and tail-skid type of landing gears is a case in point.

   1968, Astronautics & Aeronautics, volume 6, page 4

   Synonyms: undercarriage

2. countableaeronauticsAny of the assemblies which support an aircraft when it is on the ground.

   Large modern commercial aircraft have a nose landing gear and two main landing gears.

3. countableuncountableautomotiveThe bipod stand found near the front end underneath a truck trailer, used to keep the trailer level when not attached to a tractor truck.