aminophylline

noun

am·​i·​noph·​yl·​line ˌa-mə-ˈnä-fə-lən How to pronounce aminophylline (audio)
: a theophylline derivative C16H24N10O4 used especially to stimulate the heart in congestive heart failure and to dilate the air passages in respiratory disorders (such as asthma)

Word History

Etymology

amino + theophylline

First Known Use

1930, in the meaning defined above

Time Traveler
The first known use of aminophylline was in 1930

Browse Nearby Words

Cite this Entry

“Aminophylline.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/aminophylline. Accessed 8 Nov. 2025.

Medical Definition

aminophylline

noun
am·​i·​noph·​yl·​line ˌam-ə-ˈnäf-ə-lən How to pronounce aminophylline (audio)
: a theophylline derivative C16H24N10O4 used especially to stimulate the heart in congestive heart failure and to dilate the air passages in respiratory disorders

called also theophylline ethylenediamine

Last Updated: - Definition revised
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