Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio.
- the capacity of a nation's nuclear weapon stockpile to kill many times the total population of any given nation
- much more of something than is necessary, appropriate, etc.; esp., an excess of effort in attempting to achieve some end
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.
- Destructive nuclear capacity exceeding the amount needed to destroy an enemy.
- Excessive killing.
- An excess of what is necessary or appropriate for a particular end: “government overkill in dealing with dissent” (Jesse Unruh).
To destroy (an enemy or enemy target) with more nuclear force than necessary.