IgE
noun
1
: a class of immunoglobulins including antibodies that function especially in allergic reactions
2
: an antibody of the class IgE
Examples of IgE in a Sentence
Recent Examples on the Web
Specific IgE Blood Test Blood tests can check for antibodies against specific food allergens.
—
Ruth Jessen Hickman, Md, Health, 17 Apr. 2025
For some people, being exposed to alpha-gal through a tick bite triggers an immunoglobulin E, or IgE, antibody response in the body.
—Kaitlin Sullivan, NBC News, 21 Mar. 2025
In an allergy, immunoglobulin E (IgE) specific to allergens (normally harmless substances that trigger an immune response in some people) may be detected in the blood.
—Amber J. Tresca, Verywell Health, 31 Jan. 2025
When someone with an allergy consumes these foods, their immune system produces IgE antibodies targeting the allergenic proteins.
—Gordon G. Chang, Newsweek, 11 Dec. 2024
But a 2023 study found that an allergic response (at least, one including the development of IgE antibodies) is probably not in play here, and psychological factors are more likely the culprit.
—Erica Sloan, SELF, 10 Sep. 2024
Xolair works by intercepting immune molecules called IgE, known to be a trigger in allergic reactions.
—Sarah Zhang, The Atlantic, 9 Sep. 2024
Xolair's dosage ranges from 75mg to 600mg every two or four weeks, with dose and frequency determined by total serum IgE level and body weight, according to Genentech.
—Eduardo Cuevas, USA TODAY, 17 Feb. 2024
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Ruth Jessen Hickman, Md, Health, 17 Apr. 2025
For some people, being exposed to alpha-gal through a tick bite triggers an immunoglobulin E, or IgE, antibody response in the body.
—Kaitlin Sullivan, NBC News, 21 Mar. 2025
In an allergy, immunoglobulin E (IgE) specific to allergens (normally harmless substances that trigger an immune response in some people) may be detected in the blood.
—Amber J. Tresca, Verywell Health, 31 Jan. 2025
When someone with an allergy consumes these foods, their immune system produces IgE antibodies targeting the allergenic proteins.
—Gordon G. Chang, Newsweek, 11 Dec. 2024
But a 2023 study found that an allergic response (at least, one including the development of IgE antibodies) is probably not in play here, and psychological factors are more likely the culprit.
—Erica Sloan, SELF, 10 Sep. 2024
Xolair works by intercepting immune molecules called IgE, known to be a trigger in allergic reactions.
—Sarah Zhang, The Atlantic, 9 Sep. 2024
Xolair's dosage ranges from 75mg to 600mg every two or four weeks, with dose and frequency determined by total serum IgE level and body weight, according to Genentech.
—Eduardo Cuevas, USA TODAY, 17 Feb. 2024
Cite this Entry
“IgE.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/IgE. Accessed 4 Nov. 2025.
Copy CitationMedical Definition
IgE
noun1
: a class of immunoglobulins including antibodies that function especially in allergic reactions
2
: an immunoglobulin of the class IgE
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