histamine

his·ta·mine | \ ˈhi-stə-ˌmēn

, -mən \

Definition of histamine

: a compound C₅H₉N₃ especially of mammalian tissues that causes dilation of capillaries, contraction of smooth muscle, and stimulation of gastric acid secretion, that is released during allergic reactions, and that is formed by decarboxylation of histidine

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Examples of histamine in a Sentence

Recent Examples on the Web Humans do have the histamine system to transport cellular water to various parts of the cells, tissues, and organs. — Kimberly Wilson, Essence, "How Staying Hydrated Can Help Support Your Immune System," 30 May 2020 The protein molecules from the protective coating leach into your tissues, and your body reacts by triggering the release of histamines. — John Schandelmeier, Anchorage Daily News, "The springtime greening of Alaska is nothing to sneeze at," 16 May 2020 The production of histamine can cause runny nose, watery eyes, itching, swelling, and other symptoms. — Adele Jackson-gibson, Good Housekeeping, "9 Most Effective Natural Remedies to Treat Seasonal Allergies, According to Experts," 24 Mar. 2020 These meds are generally fast-acting, and work by blocking histamines, the chemicals in your body that turn you into a sneezy, dripping mess. — Lisa Bain, Good Housekeeping, "The Best Allergy Medicines to Ease Sniffles, Sneezes, and Itchy Eyes," 31 Mar. 2020 The most common wine sensitivities are often linked to histamines and sulfite preservatives and The Wand's patented technology works to filter out these compounds. — Kelly Corbett, House Beautiful, "This Wine Wand Filters Your Vino to Help Prevent Hangovers," 11 Mar. 2020 In response, your immune system releases the chemical histamine, which gives rise to allergy symptoms, according to the American Academy of Allergy, Asthma & Immunology (AAAAI). — Colleen Stinchcombe, SELF, "13 Ways to Triumph Over Fall Allergies," 13 Nov. 2018 Sulfites and histamines are found in all types of wine, red and white. — Claire Maldarelli, Popular Science, "Why does red wine make me feel sick?," 27 Dec. 2019 In most cases, an allergen causes release of a messenger known as histamine. — Taylore Glynn, Marie Claire, "I'm Allergic to Cold Weather. Here's How I Survive Winter in NYC," 25 Dec. 2019

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

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Last Updated

6 Jun 2020

Cite this Entry

“Histamine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/histamine. Accessed 9 Jul. 2020.

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More Definitions for histamine

histamine

noun

English Language Learners Definition of histamine

medical : a chemical substance in the body that causes the symptoms that people experience when they are allergic to something

See the full definition for histamine in the English Language Learners Dictionary

histamine

noun

his·ta·mine | \ ˈhis-tə-ˌmēn

, -mən

\

Medical Definition of histamine

: a compound C₅H₉N₃ especially of mammalian tissues that causes dilatation of capillaries, contraction of smooth muscle, and stimulation of gastric acid secretion, that is released during allergic reactions, and that is formed by decarboxylation of histidine

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