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[uh-mee-noh-fil-ahyn, -een, am-uh-noh-] /əˌmi noʊˈfɪl aɪn, -in, ˌæm ə noʊ-/
noun, Pharmacology.
a theophylline derivative, C 16 H 24 N 10 O 4 , used chiefly to relieve bronchial spasm in asthma, in the treatment of certain heart conditions, and as a diuretic.
Origin of aminophylline
First recorded in 1955-60; amino- + (theo)phylline Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for aminophylline


a derivative of theophylline that relaxes smooth muscle and is used mainly to dilate the airways in the treatment of asthma and emphysema
Word Origin
C20: from amino- + phyllo- + -ine²
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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aminophylline in Science
A theophylline derivative used as a bronchodilator in the treatment of bronchial asthma, emphysema, and bronchitis. Chemical formula: C16H24N10O4.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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