Pronunciation: (flī'bī"), [key]
1. the flight of a spacecraft close enough to a celestial object, as a planet, to gather scientific data.
a. Also called flypast. a low-altitude flight of an aircraft for the benefit of ground observers.
b. flyover (def. 1). Also,fly'-by".
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.