The practice of aeronautic travel.

A person who travels through the air in an airship or balloon.

Of or pertaining to the scientific study of flight

The design, construction, mathematics and mechanics of aircraft and other flying objects / The theory and practice of aircraft navigation

plural of aeronaut

Having to do with aerial navigation

In a aeronautical manner; with respect to aeronautics or aviation.

A civilian agency of the government of the United States of America, charged with space and aeronautical research and space exploration.