histamine

Definitions

General Science

  • noun a substance released from mast cells throughout the human body which stimulates tissues in various ways

Food

  • noun a substance released in response to allergens, causing blood vessels to dilate and leading to an increase in acid secretions in the stomach

Medical

  • noun a substance released in response to allergens from mast cells throughout the body. Histamines dilate blood vessels, constrict the cells of smooth muscles and cause an increase in acid secretions in the stomach.
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