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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Recent Examples of histamine from the Web
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H2 blockers stop the action of histamine, which stimulates parietal cells to produce hydrochloric acid.
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The team compared people who took proton-pump inhibitors with those who took another type of drug that reduces stomach acid: histamine H2 receptor antagonists, known as H2 blockers.
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H2 blockers stop the action of histamine, which stimulates parietal cells to produce hydrochloric acid.
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H2 blockers stop the action of histamine, which stimulates parietal cells to produce hydrochloric acid.
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The healthier your immune system, the more equipped your body is to battle histamines.
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Once the Simon Fraser University research team added histamine to their traps, everything changed.
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.
Origin and Etymology of histamine
International Scientific Vocabulary hist- + amine
HISTAMINE Defined for English Language Learners
histamine
playDefinition of histamine for English Language Learners
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medical : a chemical substance in the body that causes the symptoms that people experience when they are allergic to something
Medical Dictionary
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
Learn More about histamine
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See words that rhyme with histamine Britannica English: Translation of histamine for Arabic speakers Britannica.com: Encyclopedia article about histamine
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