: a granulocyte readily stained by eosin that is present at sites of allergic reactions and parasitic infections
Examples of eosinophil in a Sentence
Recent Examples on the Web
Claire Bugos, Verywell Health, 29 Apr. 2025
These findings suggest that Dupixent may be a good add-on therapy for people who have high eosinophil levels that suggest inflammation in their lungs and who don’t get enough symptom relief from COPD inhalers, says Hanania.
—Lisa Rapaport, EverydayHealth.com, 27 Sep. 2024
The research has also suggested a role for a certain type of vitamin D (gamma-tocopherol) that appears to calm the eosinophil response to pollution.
—Linda Carroll, TIME, 30 May 2024
Elevated eosinophils can also be seen in patients with asthma, and this patient had a history of asthma, but even then eosinophil counts are rarely this high.
—Lisa Sanders, New York Times, 16 May 2018
Claire Bugos, Verywell Health, 29 Apr. 2025
Allergens can increase eosinophils, a type of white blood cells, which can exacerbate COPD.2
Who Should Use Ohtuvayre?
—Fran Kritz, Verywell Health, 18 Apr. 2025
Non-eosinophilic asthma: This type of asthma is marked by very few eosinophils in the blood.
—Carisa Brewster, Verywell Health, 20 Mar. 2025
Blood tests showed elevated eosinophils, which can be a sign of a parasitic infection, among other things.
—Ars Technica, 11 Mar. 2025
Normal exam, normal blood tests, normal kidney function, and high eosinophil count—this time higher.
—Ars Technica, 13 Feb. 2025
An overload of eosinophils in the esophagus causes inflammation, leading the esophagus to swell or narrow.
—Lindsay Curtis, Health, 24 Jan. 2025
This buildup of eosinophils leads to inflammation, damaging the tube's tissues and disrupting its function.12
The main symptom of EoE is difficulty swallowing.
—Lindsay Curtis, Health, 24 Jan. 2025
All the patients also had lung inflammation confirmed by elevated blood levels of eosinophils.
—Lisa Rapaport, EverydayHealth.com, 27 Sep. 2024
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Adjective
The typical complete blood count panel includes an eosinophil count, so most people already have that information in their medical records.
—Claire Bugos, Verywell Health, 29 Apr. 2025
These findings suggest that Dupixent may be a good add-on therapy for people who have high eosinophil levels that suggest inflammation in their lungs and who don’t get enough symptom relief from COPD inhalers, says Hanania.
—Lisa Rapaport, EverydayHealth.com, 27 Sep. 2024
The research has also suggested a role for a certain type of vitamin D (gamma-tocopherol) that appears to calm the eosinophil response to pollution.
—Linda Carroll, TIME, 30 May 2024
Elevated eosinophils can also be seen in patients with asthma, and this patient had a history of asthma, but even then eosinophil counts are rarely this high.
—Lisa Sanders, New York Times, 16 May 2018
Noun
It is only approved for people with high levels of eosinophils, a type of immune cell that contributes to inflammation.
—Claire Bugos, Verywell Health, 29 Apr. 2025
Allergens can increase eosinophils, a type of white blood cells, which can exacerbate COPD.2
Who Should Use Ohtuvayre?
—Fran Kritz, Verywell Health, 18 Apr. 2025
Non-eosinophilic asthma: This type of asthma is marked by very few eosinophils in the blood.
—Carisa Brewster, Verywell Health, 20 Mar. 2025
Blood tests showed elevated eosinophils, which can be a sign of a parasitic infection, among other things.
—Ars Technica, 11 Mar. 2025
Normal exam, normal blood tests, normal kidney function, and high eosinophil count—this time higher.
—Ars Technica, 13 Feb. 2025
An overload of eosinophils in the esophagus causes inflammation, leading the esophagus to swell or narrow.
—Lindsay Curtis, Health, 24 Jan. 2025
This buildup of eosinophils leads to inflammation, damaging the tube's tissues and disrupting its function.12
The main symptom of EoE is difficulty swallowing.
—Lindsay Curtis, Health, 24 Jan. 2025
All the patients also had lung inflammation confirmed by elevated blood levels of eosinophils.
—Lisa Rapaport, EverydayHealth.com, 27 Sep. 2024
Cite this Entry
“Eosinophil.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/eosinophil. Accessed 28 May. 2025.
Copy CitationMedical Definition
eosinophil
1 of 2 adjective
eo·sin·o·phil
ˌē-ə-ˈsin-ə-ˌfil 
variants
also eosinophile
eosinophil
2 of 2 noun
variants
also eosinophile
: a white blood cell or other granulocyte with cytoplasmic inclusions readily stained by eosin
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