Airport hazard means any structure or object of natural growth located on or in the vicinity of a public airport, or any use of land near a public airport, that -
(1) Obstructs the airspace required for the flight of aircraft landing or taking off at the airport; or
(2) Is otherwise hazardous to aircraft landing or taking off at the airport.
14 CFR § 152.3
The following are definitions of terms used throughout this part: