Definition of "summation" [sum•ma•tion]

• The act or process of adding; addition. (noun)
• A sum or aggregate. (noun)
• A concluding part of a speech or argument containing a summary of principal points, especially of a case before a court of law. (noun)
• Physiology The process by which multiple or repeated stimuli can produce a response in a nerve, muscle, or other part that one stimulus alone cannot produce. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Obama, in summation, is acting just like the abject puppet of the Wall Street derivatives merchants and warmongers which we have argued him to be."
• "The station reports the letter includes what it calls a summation, with Voong saying he cannot -- and I'm quoting now -- "accept my poor life and that at least two people with me go to return to the dust of the earth.""
• "So, in summation; CROM! is alive and well and I'm inviting YOU to help keep it that way!"