首页  英汉  汉英  英英  词组  用法  例句  同义词  写作  俚语  缩写  词源  词根  法汉  德汉  日汉  俄汉  韩汉  西汉  意汉  泰汉  越汉

单词	theophylline
释义	theophylline noun the·​oph·​yl·​line thē-ˈä-fə-lən  : a feebly basic bitter crystalline compound C7H8N4O2 present in tea leaves that is isomeric with theobromine and is used in medicine especially as a bronchodilator Example Sentences Recent Examples on the Web And elderberry isn’t recommended for people taking diabetes medications, diuretics, corticosteroids, laxatives, the asthma drug theophylline, and those undergoing chemotherapy, Rothenberg adds. Erica Sweeney, Good Housekeeping, 27 Jan. 2021 When it’s broken down in the body, caffeine produces small amounts of the bronchodilator theophylline. Brad Rickman, Condé Nast Traveler, 17 Apr. 2018 The scientists found that amphetamine works with another ingredient, theophylline, a drug that is used for lung diseases such as asthma and bears a chemical resemblance to caffeine. Bradley J. Fikes, sandiegouniontribune.com, 16 Aug. 2017 Word History Etymology International Scientific Vocabulary theo- (from New Latin thea tea) + phyll- + -ine entry 2 First Known Use circa 1894, in the meaning defined above Medical Definition theophylline noun the·​oph·​yl·​line thē-ˈäf-ə-lən  : a feebly basic bitter crystalline compound C7H8N4O2 that is present in small amounts in tea but is prepared chiefly by synthesis, that is isomeric with theobromine, and that is used in medicine often in the form of derivatives or in combination with other drugs especially as a bronchodilator to relieve or prevent symptoms of asthma and bronchospasm associated with chronic bronchitis and emphysema
随便看	Callicebus callicebuses callicebusses Callichthyidae callidity Callier quotient calligram calligraph calligrapha calligraphed calligrapher calligraphers calligraphic calligraphically calligraphies calligraphist calligraphists calligraphy Callimachus callimico callimomid Callimomidae callimorphae callimorphas Callinectes

英语词典包含469781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。