n. The design, construction, mathematics and mechanics of aircraft and other flying objects
n. The theory and practice of aircraft navigation
the GNU version of the Collaborative International Dictionary of English
n. The science or art of ascending and sailing in the air, as by means of a balloon; aërial navigation; ballooning.
The Century Dictionary and Cyclopedia
n. The doctrine, science, or art of floating in the air, or of aërial navigation, as by means of a balloon.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. the theory and practice of navigation through air or space
Word Usage
"After reading all of your ideas, I'm inclined to support separating out aeronautics from the NASA structure and putting it elsewhere-maybe FAA, maybe a new agency modeled like NACA."