summation

noun

sum·​ma·​tion (ˌ)sə-ˈmā-shən How to pronounce summation (audio)
1
: the act or process of forming a sum : addition
2
: sum, total
3
: cumulative action or effect
especially : the process by which a sequence of stimuli that are individually inadequate to produce a response are cumulatively able to induce a nerve impulse
4
: a final part of an argument reviewing points made and expressing conclusions
summational adjective

Examples of summation in a Sentence

A summation can be found at the end of the report. We gave a summation of our discovery. The defense attorneys and prosecutors are set to make their final summations today.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
There was no better summation of the fourth-quarter miracle that unfolded on Sunday, by mirror image, than the Broncos’ game-winning drive in the fourth quarter. Luca Evans, Denver Post, 20 Oct. 2025 But unlike other series cappers, Last Rites didn’t try to be a summation of every demonic threat the duo has ever encountered, instead opting for another familial story by way of 1986’s Smurl haunting in Pennsylvania. Brian Davids, HollywoodReporter, 20 Oct. 2025 This summation is much more cursory than the others on this list. Big Think, 14 Oct. 2025 The Angels’ 8-4 loss to the Kansas City Royals provided a tidy summation of the problems, at the plate and on the mound. Jeff Fletcher, Oc Register, 24 Sep. 2025 See All Example Sentences for summation

Word History

First Known Use

1760, in the meaning defined at sense 1

Time Traveler
The first known use of summation was in 1760

Browse Nearby Words

Cite this Entry

“Summation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/summation. Accessed 24 Oct. 2025.

Kids Definition

summation

noun
sum·​ma·​tion (ˌ)sə-ˈmā-shən How to pronounce summation (audio)
1
: the act or process of forming a sum : addition
2
3
: a final part of an argument reviewing points made and expressing conclusions

Medical Definition

summation

noun
sum·​ma·​tion (ˌ)sə-ˈmā-shən How to pronounce summation (audio)
: cumulative action or effect
especially : the process by which a sequence of stimuli that are individually inadequate to produce a response are cumulatively able to induce a nerve impulse see spatial summation, temporal summation

Legal Definition

summation

noun
sum·​ma·​tion sə-ˈmā-shən How to pronounce summation (audio)

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