ac·​cu·​mu·​la·​tion | \ə-ˌkyü-m(y)ə-ˈlā-shən \

Definition of accumulation 

1 : something that has accumulated or has been accumulated an impressive accumulation of knowledge

2 : the action or process of accumulating something : the state of being or having accumulated the steady accumulation of snow

3 : increase or growth by addition especially when continuous or repeated accumulation of interest

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Examples of accumulation in a Sentence

a vast accumulation of evidence about the dangers of smoking the accumulation of leaves on the ground is proceeding at a much faster rate than my raking

Recent Examples on the Web

These policies further contributed to differences in white and black workers’ wealth accumulation, and their ability to share that wealth with their college-going heirs. Valerie Strauss, Washington Post, "What you should know about race-based affirmative action and diversity in schools," 3 July 2018 Alberto was expected to produce total rain accumulations of 10 to 15 inches with isolated totals of 25 inches across the northeastern portions of the Yucatan Peninsula and western Cuba. Ben Estes,, "Subtropical Storm Alberto expected to turn north soon: latest update," 26 May 2018 Alberto is expected to produce total rain accumulations of 10 to 15 inches with isolated totals of 25 inches across the northeastern portions of the Yucatan Peninsula and western Cuba, the National Hurricane Center said. CBS News, "Subtropical Storm Alberto is first named tropical weather system of 2018," 25 May 2018 Dejan Lovren raised the likelihood of Croatia resting players for its last group game against Iceland, as much to protect the six who are threatened by suspension via an accumulation of yellow cards than to rest anyone ahead the knockout stage. Steve Douglas,, "Croatia considering rotation in final match against Iceland," 24 June 2018 Interior of oven has heavy accumulation of black substance/grease/food debris... David J. Neal, miamiherald, "Roaches in oven, sewage on floor, flies in the fries. These restaurants are in trouble," 21 June 2018 Mud tubes look like an accumulation of dirt and sand and are a common, yet easy to miss sign of termite activity, according to the organization. James Rogers, Fox News, "Watch 500,000 termites devastate a tiny house," 16 May 2018 But there was no questioning the significance of the single, this accomplishment about an accumulation of moments rather than one crowning instant. Jeff Miller,, "Albert Pujols joins elite 3,000 hit club, adding to latest chapter of Hall of Fame career," 5 May 2018 After the mid-1970s, when Riopelle began spending extended amounts of time in Québec, his paintings became clenched and anxious, made with dense accumulations of staccato, repetitive marks and occasional quirky drawing. Karen Wilkin, WSJ, "‘Mitchell/Riopelle: Nothing in Moderation’ Review: When Lovers Collide," 12 Mar. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'accumulation.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of accumulation

15th century, in the meaning defined at sense 1

History and Etymology for accumulation

borrowed from Middle French & Latin; Middle French accumulacion, borrowed from Latin accumulātiōn-, accumulātiō, from accumulāre "to accumulate" + -tiōn-, -tiō, suffix of action nouns

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Last Updated

1 Nov 2018

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The first known use of accumulation was in the 15th century

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More Definitions for accumulation


ac·​cu·​mu·​la·​tion | \ə-ˌkyü-myə-ˈlā-shən \

Kids Definition of accumulation

1 : an act of collecting or gathering the accumulation of snow

2 : collection sense 2 an accumulation of junk



Legal Definition of accumulation 

: increase or growth by addition especially when continuous or repeated specifically : an increase in the amount of a fund or property by the continuous addition to it of the income or interest it generates to treat a stock dividend as principal when local law classifies it as income may be deemed an accumulation — W. M. McGovern, Jr. et al. — see also accumulation trust at trust

Note: Because they prevent the enjoyment and benefit of wealth, accumulations are deemed contrary to public policy. A provision in a will for an accumulation will be invalidated if found to be unreasonable by the court.

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something that serves to warn or remind

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