Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio.
a force, action, etc. that counters or checks another; specif., the use of strategic air and missile nuclear forces to destroy the nuclear striking power of the enemy, esp. as an opening action in hostilities
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.
A contrary or opposing force, especially a military force capable of destroying the nuclear armaments of an enemy.