• synonyms


  1. causing disease.
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Also mor·bif·i·cal.

Origin of morbific

1645–55; < New Latin morbificus, equivalent to morb(us) sickness + -i- -i- + -ficus -fic
Related formsmor·bif·i·cal·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for morbific

Historical Examples of morbific

  • The same thing may be said of the progressive intensity of the morbific production in abandoned malarious districts.

    Scientific American Supplement, No. 458, October 11, 1884


  • In a similar manner, small pox, measles, chicken pox and all eruptive diseases come out as products from morbific causes within.

    Plain Talks on Avoided Subjects

    Henry Newell Guernsey

  • Insanity is the result of a material change in the structure of the brain produced by morbific action.

  • But the precise nature of the morbific agent is still unknown.

  • But many times the menses proceed from some violence done to nature, or some morbific matter, which often proves fatal.

British Dictionary definitions for morbific


  1. causing disease; pathogenic
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Derived Formsmorbifically, adverb
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

morbific in Medicine


  1. Relating to or causing disease; pathogenic.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.