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.
At the end of the study period, there was a significant decrease in sperm count and an increase in sperm abnormalities in the dogs who wore the polyester pants. Sara Novak, Discover Magazine, 7 June 2025 The app detects arrhythmias and irregular heartbeats, early signs of heart failure, indicators of coronary artery disease and heart valve abnormalities. Ramsha Waseem, Smithsonian Magazine, 30 May 2025 Though these medications are not currently FDA-approved for PCOS, a couple studies have found that in people with the condition who also have a higher weight, the drugs don’t just have a weight-loss effect but can also alleviate PCOS-specific symptoms like cycle abnormalities. Erica Sloan, SELF, 20 May 2025 No other information about the abnormality and the surgery have been revealed. Rebecca Cohen, NBC news, 19 May 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

Browse Nearby Words

Cite this Entry

“Abnormality.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/abnormality. Accessed 17 Jun. 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

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!