eosinophilia

noun

eo·​sin·​o·​phil·​ia ˌē-ə-ˌsi-nə-ˈfi-lē-ə How to pronounce eosinophilia (audio)
: abnormal increase in the number of eosinophils in the blood that is characteristic of allergic states and various parasitic infections

Examples of eosinophilia in a Sentence

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.
While some diseases, like seasonal allergies, asthma, and autoimmune diseases, are known to cause eosinophilia, or an abnormally high number of these cells, the role of eosinophilia in chronic pain hasn’t been well explored. New Atlas, 13 Oct. 2025 Some of these more serious conditions are SJS, toxic epidermal necrolysis, and drug reactions with eosinophilia and systemic symptoms (DRESS). Ayesha Gulzar, Verywell Health, 10 Mar. 2025 An autopsy revealed the cause was DRESS — drug reaction with eosinophilia and systemic symptoms. Katherine Ellison, Washington Post, 27 July 2024

Word History

Etymology

New Latin

First Known Use

1900, in the meaning defined above

Time Traveler
The first known use of eosinophilia was in 1900

Browse Nearby Words

Cite this Entry

“Eosinophilia.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/eosinophilia. Accessed 2 Jul. 2026.

Medical Definition

eosinophilia

noun
eo·​sin·​o·​phil·​ia -ˌsin-ə-ˈfil-ē-ə How to pronounce eosinophilia (audio)
: abnormal increase in the number of eosinophils in the blood that is characteristic of allergic states and various parasitic infections

called also acidophilia

More from Merriam-Webster on eosinophilia

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