flyby(redirected from fly-by)
Also found in: Dictionary, Thesaurus, Acronyms, Idioms, Wikipedia.
Related to fly-by: fly-by-wire
flyby(flÿ -bÿ) A trajectory that takes a spaceprobe close to a planet or satellite but does not permit it to enter an orbit about the body or land on it.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006
A close approach of a space vehicle to a target planet in which the vehicle does not impact the planet or go into orbit around it. Also known as swing-by.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.