digitoxin

[dij-i-tok-sin]
noun Pharmacology.
a white, crystalline, water-insoluble cardiac glycoside, C 41 H 64 O 13 , or a mixture of cardiac glycosides of which this is the chief constituent, obtained from digitalis and used in the treatment of congestive heart failure.

Origin:
1880–85; digi(talis) + toxin

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World English Dictionary
digitoxin (ˌdɪdʒɪˈtɒksɪn)
 
n
a white toxic bitter-tasting glycoside, extracted from the leaves of the purple foxglove (Digitalis purpurea) and used in the treatment of heart failure and some abnormal heart rhythms. Formula: C41H64O13
 
[from digi(talis) + toxin]

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American Heritage
Medical Dictionary

digitoxin dig·i·tox·in (dĭj'ĭ-tŏk'sĭn)
n.
A secondary cardioactive glycoside that is derived from and similar in effect to digitalis but that is more completely absorbed from the gastrointestinal tract.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
digitoxin   (dĭj'ĭ-tŏk'sĭn)  Pronunciation Key 
A highly active glycoside derived from digitalis and prescribed in the treatment of certain cardiac conditions. Chemical formula: C41H64O13.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
Digitoxin is a medication used to treat a variety of heart conditions.
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