abnormality

noun

ab·​nor·​mal·​i·​ty ˌab-nər-ˈma-lə-tē How to pronounce abnormality (audio)
-(ˌ)nȯr-
plural abnormalities
Synonyms of abnormalitynext
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.
There is an ongoing scientific controversy over whether obese individuals with no metabolic abnormalities, such as diabetes, high cholesterol, or hypertension, should be treated as higher risk. Tom Chivers, semafor.com, 3 Apr. 2026 The abnormality has also been linked to deaths in the National Football League and in other sports such as hockey and soccer. ABC News, 2 Apr. 2026 Abnormalities in legal filings Questions began to emerge about the Nevada County cases last summer, after a judge noticed abnormalities in references to legal precedent in a brief filed by a prosecutor. Sharon Bernstein, Sacbee.com, 1 Apr. 2026 But over 1,200 clones later, the experiment stopped, because by that last generation the mice kept dying immediately after being born, despite displaying no outward physical abnormalities. Frank Landymore, Futurism, 26 Mar. 2026 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 5 Apr. 2026.

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

Love words? Need even more definitions?

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

More from Merriam-Webster