As used in this chapter, unless the context otherwise requires:

1.  ’Air navigation facility’ means any facility, other than one owned and operated by the United States, used in, available for use in, or designed for use in, aid of air navigation, including any structures, mechanisms, lights, beacons, markers, communicating systems, or other instrumentalities, or devices used or useful as an aid, or constituting an advantage or convenience, to the safe taking off, navigation, and landing of aircraft, or the safe and efficient operation or maintenance of an airport, and any combination of any or all of such facilities.

2.  ’Airport’ means any area of land or water which is used for the landing and takeoff of aircraft, and any appurtenant areas which are used for airport buildings or other airport facilities or rights-of-way, together with all airport buildings and facilities located thereon.

3.  ’Airport hazard’ means any structure, object of natural growth, or use of land which obstructs the airspace required for the flight of aircraft in landing or taking off at an airport or is otherwise hazardous to such landing or taking off of aircraft.

4.  ’Municipal’ means pertaining to a municipality as defined in this section.

5.  ’Municipality’ means any county, city or town of this state.

6.  ’Person’ includes a government, a governmental agency and a political subdivision of a government.

7.  ’Public utility’ means a person who operates any airline, broadcasting, electric, gas, pipeline, radio, railroad, rural electric, sanitary sewer, slurry, telephone or water business in this state and who conducts such a business for a public use.