Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio.
Mil. designating ground troops that are moved about by aircraft for engaging in ground combat
Used by arrangement with John Wiley & Sons, Inc.
The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Capable of being transported and deployed, usually by helicopter, to a combat zone or from one site to another within a theater of operations: an airmobile infantry regiment.