histamine

play
noun his·ta·mine \ˈhi-stə-ˌmēn, -mən\

Definition of histamine

  1. :  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

Origin and Etymology of histamine

International Scientific Vocabulary hist- + amine


First Known Use: circa 1913


HISTAMINE Defined for English Language Learners

histamine

play
noun his·ta·mine \ˈhi-stə-ˌmēn, -mən\

Definition of histamine for English Language Learners

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


Medical Dictionary

histamine

play play
noun his·ta·mine \ˈhis-tə-ˌmēn, -mən\

Medical Definition of histamine

  1. :  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

histaminic

\ˌhis-tə-ˈmin-ik\play adjective


Seen and Heard

What made you want to look up histamine? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

acid in temper, mood, or tone

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

  • peter-bruegel-tower-of-babel-painting
  • What language does pajama come from?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Syn City

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!