abnormality

noun

ab·​nor·​mal·​i·​ty ˌab-nər-ˈma-lə-tē How to pronounce abnormality (audio)
-(ˌ)nȯr-
plural abnormalities
1
: something abnormal
2
: the quality or state of being abnormal

Examples of abnormality in a Sentence

The test results showed several genetic abnormalities. There was some abnormality in his vision.
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.
About half of millennials (51%) and Gen Z (48%) had at least one of these abnormalities, compared with 34% of Gen X and just 15% of boomers. Sarah Garone, Health, 30 July 2025 The disease occurs due to a defective gene that results in abnormalities in, or absence of, dystrophin, a protein that helps keep the body's muscle cells intact. Adeola Adeosun, MSNBC Newsweek, 21 July 2025 Additionally, having insights into structural abnormalities such as those identified in the study may improve risk assessment for violent or antisocial behavior, especially in forensic settings. New Atlas, 26 June 2025 Advances in next generation sequencing (NGS) technologies have enabled cancer research innovations like improvements in minimal residual disease (MRD) identification and the discovery of drugs that target genetic tumor abnormalities. Linda De Jesus, Forbes.com, 30 June 2025 See All Example Sentences for abnormality

Word History

Etymology

abnormal entry 1 + -ity

First Known Use

1847, in the meaning defined at sense 1

Time Traveler
The first known use of abnormality was in 1847

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Cite this Entry

“Abnormality.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/abnormality. Accessed 4 Aug. 2025.

Kids Definition

abnormality

noun
ab·​nor·​mal·​i·​ty ˌab-nər-ˈmal-ət-ē How to pronounce abnormality (audio)
-(ˌ)nȯr-
plural abnormalities
1
: the state of being abnormal
2
: something abnormal

Medical Definition

abnormality

noun
ab·​nor·​mal·​i·​ty ˌab-nər-ˈmal-ət-ē, -(ˌ)nȯr- How to pronounce abnormality (audio)
plural abnormalities
1
: the quality or state of being abnormal
2
: something abnormal
brain-wave abnormalities

More from Merriam-Webster on abnormality

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