eosinophil

1 of 2

adjective

eo·​sin·​o·​phil ˌē-ə-ˈsi-nə-ˌfil 

: eosinophilic sense 1

eosinophil

2 of 2

noun

: 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

Adjective

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

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

An important part of the immune system, eosinophils are a type of white blood cell that can cause inflammation in the lungs and exacerbate breathing problems. —Lisa Rapaport, EverydayHealth.com, 27 Sep. 2024

In people with EoE, exposure to allergens, such as food or environmental allergens, causes eosinophils to collect in the esophagus, leading to inflammation. —Lindsay Curtis, Health, 13 July 2024

Word History

First Known Use

Adjective

circa 1882, in the meaning defined above

Noun

circa 1900, in the meaning defined above

Rhymes for eosinophil

• verapamil
• anthill
• backfill
• bluegill
• crossbill
• distil
• distill
• downhill
• dunghill
• foothill
• fulfil
• fulfill

Kids Definition

eosinophil

noun

eo·​sin·​o·​phil

ˌē-ə-ˈsin-ə-ˌfil

: a white blood cell with a granule-containing cytoplasm that is found in the body at sites of allergic reactions and parasitic infections

Medical Definition

eosinophil

1 of 2 adjective

eo·​sin·​o·​phil ˌē-ə-ˈsin-ə-ˌfil 

variants also eosinophile

-ˌfīl 

: eosinophilic sense 1

eosinophil

2 of 2 noun

variants also eosinophile

: a white blood cell or other granulocyte with cytoplasmic inclusions readily stained by eosin