单词	ephedrine
释义	ephedrine /ˈɛfədriːn / noun [mass noun] Medicine A crystalline alkaloid drug obtained from some ephedras. It causes constriction of the blood vessels and widening of the bronchial passages, and is used to relieve asthma and hay fever. Chemical formula: C10H15NO. He studied the tissue distribution and metabolism of caffeine, amphetamines, ephedrine, and narcotic drugs.... A 43 year old general practitioner had had juvenile asthma requiring regular ephedrine. If the medicines aspirin, ephedrine, and morphine were once botanicals, how did they get to be tested and marketed as drugs? Origin Late 19th century: from ephedra + -ine4.
随便看	beggarticks beggarwoman beggary begging bowl begging letter begin Begin, Menachem beginner beginner's luck beginning begird begob beg off begone be gone on beg one's bread begonia be good (or bad) news be good to go begorra begot begotten beg-pardon begrime begrudge

英语词典包含243303条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。