mod·​i·​fi·​ca·​tion | \ ˌmä-də-fə-ˈkā-shən How to pronounce modification (audio) \

Definition of modification

1 : the limiting of a statement : qualification with some modifications this statement is true today— J. B. Conant
3a : the making of a limited change in something making the exactly minimum degree of modification to her institutions necessary to fit them to new conditions— John Strachey also : the result of such a change
b : a change in an organism caused by environmental factors
4 : a limitation or qualification (see qualification sense 1) of the meaning of a word by another word, by an affix, or by internal change

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Examples of modification in a Sentence

The program can be used on all computers without modification. They passed the law with only a few minor modifications. The weather required some major modifications to our travel plans.
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Recent Examples on the Web There's also no repeal or modification to the section 199A deduction for passthroughs or the state and local tax deduction cap, which has been a big priority for some congressional Democrats. Tax Notes Staff, Forbes, "Analyzing The Tax Provisions Of Biden’s American Families Plan," 11 May 2021 Any such modification would require at least 50 votes. Jeff Barker,, "As states add voting restrictions, Democrats say reform bill by Maryland’s John Sarbanes is ‘vital to protect our democracy’," 8 May 2021 It's also affected by industrial pollution, riverbed modification and hybridization with non-native sturgeon. Rachel Trent, CNN, "US adds Yangtze sturgeon fish to endangered species list," 1 May 2021 As a modification, feel free to add to the rest period. Christa Sgobba, SELF, "A Tabata-Style Workout That Hits Your Entire Body," 29 Apr. 2021 The Brooklyn Museum began discussing its deaccessioning plan in 2019, a year before the AAMD’s modification. Washington Post, "The Met is selling art to survive the pandemic. Critics say it’s a dangerous precedent.," 8 Mar. 2021 This customer wanted a modification done to better support its business. Brian Framson, Rolling Stone, "How Challenging Customers Can Drive Business Value," 8 Mar. 2021 What Newsom would essentially approve is a modification of the state guidelines, which for now ban fans at professional sports. Bill Shaikin, Los Angeles Times, "Newsom says state is on track to allow fans at MLB games by opening day," 3 Mar. 2021 Dutcher modified a play that is a modification of a staple cross-screen play the Aztecs run early and often in most games. Mark Zeigler, San Diego Union-Tribune, "3 thoughts: No. 22 SDSU 78, Boise State 66 ... Senior Day, drawing up a play and computer love," 26 Feb. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'modification.' 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 modification

1603, in the meaning defined at sense 1

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Time Traveler for modification

Time Traveler

The first known use of modification was in 1603

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Statistics for modification

Last Updated

14 May 2021

Cite this Entry

“Modification.” Dictionary, Merriam-Webster, Accessed 16 May. 2021.

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More Definitions for modification



English Language Learners Definition of modification

: the act or process of changing parts of something : the act or process of modifying something
: a change in something (such as a system or style)


mod·​i·​fi·​ca·​tion | \ ˌmä-də-fə-ˈkā-shən How to pronounce modification (audio) \

Kids Definition of modification

1 : the act or process of changing parts of something
2 : a slightly changed form


mod·​i·​fi·​ca·​tion | \ ˌmäd-ə-fə-ˈkā-shən How to pronounce modification (audio) \

Medical Definition of modification

1 : the act or result of modifying something
2 : a change in an organism that is not inherited and that is caused by the influence of its environment

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