allergy

noun
al·​ler·​gy | \ ˈa-lər-jē How to pronounce allergy (audio) \
plural allergies

Definition of allergy

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

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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 Because Lucia had a peanut allergy, Ms. Rodriguez had also worked to spread awareness of food allergies and had become a fierce health care advocate. New York Times, 8 July 2021 Common allergy symptoms include: Runny nose. Sneezing. Emily Deletter, The Enquirer, 11 Aug. 2021 Seafood allergy: People who are allergic to seafood might also be allergic to fish oil supplements. Bryony Gilbey, chicagotribune.com, 11 Apr. 2021 Both the British allergy to hyperbolic disquisition and the American taste for getting right down to cases—not quite the same thing—were alien to him. Isaac Chotiner, The New Yorker, 12 Aug. 2021 Razors, infant formula, allergy medicine, probiotic supplement and Nicorette were reported stolen July 22 when a suspect put several items into a shopping basket at Target, 1129 Lake St. and left the store. chicagotribune.com, 3 Aug. 2021 Extra chargers and cords; allergy medicine, a Z-Pack, B12 and vitamin C; my watches; a Theragun massager and a red-light machine that helps with inflammation. Paige Reddinger, Robb Report, 31 July 2021 The future of human/cat allergy treatment may be in found in cat food, vaccines or gene editing. Stacey Burling, Star Tribune, 30 July 2021 O’Neill was in left field for the Cardinals after a right pinkie injury and a food allergy reaction limited him to two plate appearances over the past week. BostonGlobe.com, 10 July 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'allergy.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of allergy

1908, in the meaning defined at sense 1

History and Etymology for allergy

borrowed from German Allergie "heightened reaction to an antigen to which an individual has been previously exposed," from all- all- + -ergie, in Energie energy, or directly from its source, Greek -ergeia, taken to mean "action, response"

Note: The term was introduced, along with allergisch allergic and Allergen allergen, by the German physician Clemens Peter Freiherr von Pirquet (1874-1929) in "Allergie," Münchener medizinische Wochenschrift, 53. Jahrgang, Nr. 30 (July 24, 1906), pp. 1457-58.

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Time Traveler for allergy

Time Traveler

The first known use of allergy was in 1908

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Dictionary Entries Near allergy

allergist

allergy

allergy shot

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Statistics for allergy

Last Updated

18 Sep 2021

Cite this Entry

“Allergy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/allergy. Accessed 22 Sep. 2021.

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More Definitions for allergy

allergy

noun

English Language Learners Definition of allergy

: a medical condition that causes someone to become sick after eating, touching, or breathing something that is harmless to most people

allergy

noun
al·​ler·​gy | \ ˈa-lər-jē How to pronounce allergy (audio) \
plural allergies

Kids Definition of allergy

: a condition in which a person is made sick by something that is harmless to most people

allergy

noun
al·​ler·​gy | \ ˈal-ər-jē How to pronounce allergy (audio) \
plural allergies

Medical Definition of allergy

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

More from Merriam-Webster on allergy

Nglish: Translation of allergy for Spanish Speakers

Britannica English: Translation of allergy for Arabic Speakers

Britannica.com: Encyclopedia article about allergy

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