9 Grammatical Pitfalls


[suh-mey-shuh n] /səˈmeɪ ʃən/
the act or process of summing.
the result of this; an aggregate or total.
a review or recapitulation of previously stated facts or statements, often with a final conclusion or conclusions drawn from them.
Law. the final arguments of opposing attorneys before a case goes to the jury.
Physiology. the arousal of impulses by a rapid succession of stimuli, carried either by separate sensory neurons (spatial summation) or by the same sensory neuron (temporal summation)
Origin of summation
1750-60; < Medieval Latin summātiōn- (stem of summātiō), equivalent to summāt(us) (past participle of summāre to sum; see -ate1) + -iōn- -ion
Related forms
summational, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
Examples from the web for summation
  • He said the other prosecutors would deliver the rest of the summation.
  • Sometimes a good response can serve as a summation of a major theme in the panel.
  • There is no quote from the second paper, only my summation.
  • Every company needs a one-sentence summation of its philosophy.
  • We are not even conscious agents, per se, so much as a summation of chemical processes.
  • Wasteland's post, while a bit caustic, was a succinct summation of what many of us were thinking.
  • When he told the jurors during his summation that he went home at night and thought of their faces, it was easy to believe him.
  • Murphy delivered a two-and-a-half hour summation without ever glancing at his notes.
  • The disease is the result of a summation, and the measure of the etiological determinations can be completed from any one part.
  • It is more than merely a summation of what's in the plan, however.
British Dictionary definitions for summation


the act or process of determining a sum; addition
the result of such an act or process
a summary
(US, law) the concluding statements made by opposing counsel in a case before a court
Derived Forms
summational, adjective
summative, adjective
Word Origin
C18: from Medieval Latin summātiō, from summāre to total, from Latin summasum1
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source
Word Origin and History for summation

1760, from Modern Latin summationem (nominative summatio) "an adding up," from Late Latin summatus, past participle of summare "to sum up," from Latin summa (see sum).

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
summation in Medicine

summation sum·ma·tion (sə-mā'shən)
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.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source

Word of the Day

Difficulty index for summation

Many English speakers likely know this word

Word Value for summation

Scrabble Words With Friends

Quotes with summation