noun 下载 🔗分享 组织胺, 组胺。 An amine, C5H9N3, formed by decarboxylation of histidine, that causes dilatation of capillaries, contraction of smooth muscle, and stimulation of gastric acid secretion; it is released during allergic reactions. Examples : "The itchy rash was caused by the release of histamine in response to the bug bite. " 由于被虫咬后,身体释放了组胺,所以才起了这种瘙痒的皮疹。 medicine physiology biochemistry biology chemistry substance body 与AI对话词汇游戏阅读练习