plural allergies
1
: altered bodily reactivity (such as hypersensitivity) to an antigen in response to a first exposure
a bee venom allergy so severe that a second sting may be fatal
2
: exaggerated or pathological immunological reaction (as by sneezing, difficult breathing, itching, or skin rashes) to substances, situations, or physical states that are without comparable effect on the average individual
3
: medical practice concerned with allergies
4
: a feeling of antipathy or aversion
Examples of allergy in a Sentence
Many people have some form of allergy.
independent-minded people who seem to have an allergy to any control from the government
Recent Examples on the Web
Dozens of generic medications—including some to treat conditions like high blood pressure, allergies, and high cholesterol—have been recalled.
—
Julia Landwehr, Health, 17 Apr. 2025
Services include allergy, asthma, cancer care, cardiology, ear, nose, throat, gastroenterology, endoscopy services, oncology, infusion services, urogynecology, audiology, radiology, rheumatology, urology and lab services, Klugherz said.
—Talia McWright, Twin Cities, 16 Apr. 2025
That means an injection could stop all allergic reactions — not only seasonal allergies but food allergies (such as peanuts) and insect allergies for a prolonged period of time.
—Dylan Scott, Vox, 15 Apr. 2025
The recalled tortilla chips can pose a serious or life-threatening risk to people with an allergy or severe sensitivity to milk.
—Emily Kay Votruba, EverydayHealth.com, 7 Apr. 2025
See All Example Sentences for allergy
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Julia Landwehr, Health, 17 Apr. 2025
Services include allergy, asthma, cancer care, cardiology, ear, nose, throat, gastroenterology, endoscopy services, oncology, infusion services, urogynecology, audiology, radiology, rheumatology, urology and lab services, Klugherz said.
—Talia McWright, Twin Cities, 16 Apr. 2025
That means an injection could stop all allergic reactions — not only seasonal allergies but food allergies (such as peanuts) and insect allergies for a prolonged period of time.
—Dylan Scott, Vox, 15 Apr. 2025
The recalled tortilla chips can pose a serious or life-threatening risk to people with an allergy or severe sensitivity to milk.
—Emily Kay Votruba, EverydayHealth.com, 7 Apr. 2025
See All Example Sentences for allergy
Cite this Entry
“Allergy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/allergy. Accessed 22 Apr. 2025.
Copy CitationKids Definition
allergy
noun
al·ler·gy
ˈal-ər-jē 
plural allergies
1
: exaggerated or abnormal reaction (as by sneezing, itching, or rashes) to substances, situations, or physical states that do not have such a strong effect on most people
2
: a feeling of dislike
Medical Definition
allergy
noun
al·ler·gy
ˈal-ər-jē
plural allergies
1
: altered bodily reactivity (as hypersensitivity) to an antigen in response to a first exposure
his bee-venom allergy may render a second sting fatal
2
: exaggerated or pathological reaction (as by sneezing, respiratory embarrassment, itching, or skin rashes) to substances, situations, or physical states that are without comparable effect on the average individual
3
: medical practice concerned with allergies
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