[ uh-mee-noh-fil-ahyn, -een, am-uh-noh- ]
/ əˌmi noʊˈfɪl aɪn, -in, ˌæm ə noʊ- /

noun Pharmacology.

a theophylline derivative, C16H24N10O4, 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 Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for aminophylline

/ (æmɪˈnɒfɪliːn) /


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 for aminophylline

C20: from amino- + phyllo- + -ine ²
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

Scientific definitions for aminophylline

[ ăm′ə-nŏfə-lĭn ]

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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.