[ 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.

Nearby words

  1. digitigrade,
  2. digitinervate,
  3. digitipinnate,
  4. digitize,
  5. digitized,
  6. digitron,
  7. digitule,
  8. digitus,
  9. diglossia,
  10. diglot

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.