theophylline

[ thee-uh-fil-een, -in ]

/ ˌθi əˈfɪl in, -ɪn /

noun Pharmacology.

a white, crystalline, poisonous alkaloid, C7H8N4O2, an isomer of theobromine, extracted from tea leaves or produced synthetically: used to relieve bronchial spasms, in the treatment of certain heart conditions, and as a diuretic.

Origin of theophylline

1890–95; theo-, irregular combining form representing New Latin thea tea + -phyll + -ine²

Words nearby theophylline

theophagy, theophany, Theophilus, theophobia, Theophrastus, theophylline, theophylline ethylenediamine, theor., theorbo, order of the day, the, Theorell

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for theophylline

Caffeine, theophylline, and theobromine are not found in animal tissues, but are fairly widely distributed in plants.
The Chemistry of Plant Life|Roscoe Wilfred Thatcher

British Dictionary definitions for theophylline

theophylline

/ (ˌθɪəˈfɪliːn, -ɪn, θɪˈɒfɪlɪn) /

noun

a white crystalline slightly water-soluble alkaloid that is an isomer of theobromine: it occurs in plants, such as tea, and is used to treat asthma. Formula: C 7 H 8 N 4 O 2See also xanthine (def. 2)

Word Origin for theophylline

C19: from theo (bromine) + 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

Medical definitions for theophylline

theophylline

[ thē-ŏf′ə-lĭn, thē′ō-fĭl′ēn′ ]

n.

A colorless crystalline alkaloid derived from tea leaves or made synthetically, used as a cardiac stimulant and diuretic.

Scientific definitions for theophylline

theophylline

[ thē-ŏf′ə-lĭn ]

A colorless, crystalline alkaloid derived from tea leaves or made synthetically. It is used in medicine especially as a bronchial dilator. Theophylline is a xanthine that is similar in structure to caffeine and is a structural isomer of theobromine. Chemical formula: C7H8N4O2.

单词	theophylline
释义	theophylline [ thee-uh-fil-een, -in ] / ˌθi əˈfɪl in, -ɪn / noun Pharmacology. a white, crystalline, poisonous alkaloid, C7H8N4O2, an isomer of theobromine, extracted from tea leaves or produced synthetically: used to relieve bronchial spasms, in the treatment of certain heart conditions, and as a diuretic. Origin of theophylline 1890–95; theo-, irregular combining form representing New Latin thea tea + -phyll + -ine² Words nearby theophylline theophagy, theophany, Theophilus, theophobia, Theophrastus, theophylline, theophylline ethylenediamine, theor., theorbo, order of the day, the, Theorell Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for theophylline Caffeine, theophylline, and theobromine are not found in animal tissues, but are fairly widely distributed in plants. The Chemistry of Plant Life\|Roscoe Wilfred Thatcher British Dictionary definitions for theophylline theophylline / (ˌθɪəˈfɪliːn, -ɪn, θɪˈɒfɪlɪn) / noun a white crystalline slightly water-soluble alkaloid that is an isomer of theobromine: it occurs in plants, such as tea, and is used to treat asthma. Formula: C 7 H 8 N 4 O 2See also xanthine (def. 2) Word Origin for theophylline C19: from theo (bromine) + 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 Medical definitions for theophylline theophylline [ thē-ŏf′ə-lĭn, thē′ō-fĭl′ēn′ ] n. A colorless crystalline alkaloid derived from tea leaves or made synthetically, used as a cardiac stimulant and diuretic. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for theophylline theophylline [ thē-ŏf′ə-lĭn ] A colorless, crystalline alkaloid derived from tea leaves or made synthetically. It is used in medicine especially as a bronchial dilator. Theophylline is a xanthine that is similar in structure to caffeine and is a structural isomer of theobromine. Chemical formula: C7H8N4O2. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
随便看	chunchon chunder chunderous chun doo hwan chung chungjin chungju chungking chunjie chunk chunking chunky chunnel chunter chupacabra chupatti chuppah chuquisaca chur churban church church army church book church commissioners church council