histamine

[ his-tuh-meen, -min ]

/ ˈhɪs təˌmin, -mɪn /

noun

Biochemistry, Physiology. a heterocyclic amine, C5H9N3, released by mast cells when tissue is injured or in allergic and inflammatory reactions, causing dilation of small blood vessels and smooth muscle contraction.

Pharmacology. a commercial form of this compound, obtained from histidine and used chiefly in the diagnosis of gastric and circulatory functions.

Also his·ta·min

[his-tuh-min]. /ˈhɪs tə mɪn/.

Compare antihistamine.

Origin of histamine

First recorded in 1910–15; hist(idine) + -amine

OTHER WORDS FROM histamine

his·ta·min·ic

[his-tuh-min-ik], /ˌhɪs təˈmɪn ɪk/, adjective

Words nearby histamine

hissy fit, hist, Histadrut, Histalog test, histaminase, histamine, histamine blocker, histamine-fast, histamine headache, histaminemia, histamine test

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for histamine

histamine

/ (ˈhɪstəˌmiːn, -mɪn) /

noun

an amine formed from histidine and released by the body tissues in allergic reactions, causing irritation. It also stimulates gastric secretions, dilates blood vessels, and contracts smooth muscle. Formula: C 5 H 9 N 3See also antihistamine

Derived forms of histamine

histaminic (ˌhɪstəˈmɪnɪk), adjective

Word Origin for histamine

C20: from hist (idine) + -amine

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for histamine

histamine

[ hĭs′tə-mēn′, -mĭn ]

n.

A physiologically active depressor amine found in plant and animal tissue, derived from histidine by decarboxylation and released from cells in the immune system as part of an allergic reaction. It is a powerful stimulant of gastric secretion, constrictor of bronchial smooth muscle, and vasodilator.

Other words from histamine

his′ta•min′ic (-mĭn′ĭk) adj.

Scientific definitions for histamine

histamine

[ hĭs′tə-mēn′ ]

An organic compound found widely in animals and plants that in humans and other mammals is released as part of the body's immune response, causing physiological changes including dilation of the blood vessels, contraction of smooth muscle (as in the airways), and increased gastric acid secretion. The itching and sneezing typical of respiratory allergies are caused by the release of histamine. Chemical formula: C5H9N3

单词	histamine
释义	histamine [ his-tuh-meen, -min ] / ˈhɪs təˌmin, -mɪn / noun Biochemistry, Physiology. a heterocyclic amine, C5H9N3, released by mast cells when tissue is injured or in allergic and inflammatory reactions, causing dilation of small blood vessels and smooth muscle contraction. Pharmacology. a commercial form of this compound, obtained from histidine and used chiefly in the diagnosis of gastric and circulatory functions. Also his·ta·min [his-tuh-min]. /ˈhɪs tə mɪn/. Compare antihistamine. Origin of histamine First recorded in 1910–15; hist(idine) + -amine OTHER WORDS FROM histamine his·ta·min·ic [his-tuh-min-ik], /ˌhɪs təˈmɪn ɪk/, adjective Words nearby histamine hissy fit, hist, Histadrut, Histalog test, histaminase, histamine, histamine blocker, histamine-fast, histamine headache, histaminemia, histamine test Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for histamine histamine / (ˈhɪstəˌmiːn, -mɪn) / noun an amine formed from histidine and released by the body tissues in allergic reactions, causing irritation. It also stimulates gastric secretions, dilates blood vessels, and contracts smooth muscle. Formula: C 5 H 9 N 3See also antihistamine Derived forms of histamine histaminic (ˌhɪstəˈmɪnɪk), adjective Word Origin for histamine C20: from hist (idine) + -amine Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Medical definitions for histamine histamine [ hĭs′tə-mēn′, -mĭn ] n. A physiologically active depressor amine found in plant and animal tissue, derived from histidine by decarboxylation and released from cells in the immune system as part of an allergic reaction. It is a powerful stimulant of gastric secretion, constrictor of bronchial smooth muscle, and vasodilator. Other words from histamine his′ta•min′ic (-mĭn′ĭk) adj. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for histamine histamine [ hĭs′tə-mēn′ ] An organic compound found widely in animals and plants that in humans and other mammals is released as part of the body's immune response, causing physiological changes including dilation of the blood vessels, contraction of smooth muscle (as in the airways), and increased gastric acid secretion. The itching and sneezing typical of respiratory allergies are caused by the release of histamine. Chemical formula: C5H9N3 The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
随便看	mefenamic acid meff mefloquine mefoxin meg mega- megabacterium megabit megabladder megabuck megabyte megacephalic megacephaly megachurch megacity megacolon megacorporation megacycle megacystic syndrome megacystis megadeal megadeath megadont megadontia megadontism