smart bomb definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
Mil. Slang an extremely accurate guided missile directed to its target by any of various electronic means, as by a reflected laser beam
smart bomb definition by American Heritage Dictionary
A bomb that can be guided by radio waves or a laser beam to its target.