summation

noun

sum·​ma·​tion (ˌ)sə-ˈmā-shən How to pronounce summation (audio)
Synonyms of summationnext
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.
Clark and White, however, pushed back on the notion that this particular argument was a fair summation of their bond. James Boyd, New York Times, 2 June 2026 In addition, the news organization insists its statements are true in the sense that, even if some details are inaccurate, the gist or overall summation of the reporting was right. Michael McCann, Sportico.com, 2 June 2026 Gretchen realized that Blue Antiquity was Oscar’s capstone novel, a summation of what my husband believed about life, love, death, and eternity. Literary Hub, 12 May 2026 Trump is not totally wrong in his summation, but the remedy is bad as redistricting changes are supposed to occur once every 10 years based on population changes. Gary Franks, Hartford Courant, 3 May 2026 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 12 Jun. 2026.

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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