[ dij-i-tok-sin ]
/ ˌdɪdʒ ɪˈtɒk sɪn /

noun Pharmacology.

a white, crystalline, water-insoluble cardiac glycoside, C41H64O13, 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 of digitoxin

First recorded in 1880–85; digi(talis) + toxin
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for digitoxin

British Dictionary definitions for digitoxin


/ (ˌdɪdʒɪˈtɒksɪn) /


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: C 41 H 64 O 13

Word Origin for digitoxin

from digi (talis) + toxin
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

Medicine definitions for digitoxin


[ dĭj′ĭ-tŏksĭn ]


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.

Science definitions for digitoxin


[ dĭj′ĭ-tŏksĭn ]

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