1. Biology. different in ancestry, but having the same form or appearance.
  2. Chemistry, Crystallography. isomorphous.
  3. Mathematics. pertaining to two sets related by an isomorphism.

Origin of isomorphic

First recorded in 1860–65; iso- + -morphic
Related formsun·i·so·mor·phic, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for isomorphic

Historical Examples of isomorphic

British Dictionary definitions for isomorphic


isomorphous (ˌaɪsəʊˈmɔːfəs)

  1. exhibiting isomorphism
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

Word Origin and History for isomorphic

1862, from iso- + Greek morphe (see Morpheus).

Online Etymology Dictionary, © 2010 Douglas Harper

isomorphic in Medicine


  1. Having a similar structure or appearance but being of different ancestry.
  2. Related by an isomorphism.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.