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[ahy-suh-trop-ik, -troh-pik] /ˌaɪ səˈtrɒp ɪk, -ˈtroʊ pɪk/
Physics. of equal physical properties along all axes.
Compare anisotropic (def 1).
Zoology. lacking axes that are predetermined, as in some eggs.
Also, isotropous
[ahy-so-truh-puh s] /aɪˈsɒ trə pəs/ (Show IPA)
Origin of isotropic
1860-65; iso- + -tropic
Related forms
isotropy, noun
nonisotropic, adjective
nonisotropous, adjective
unisotropic, adjective
unisotropous, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for isotropic
  • Go ahead and reference isotropic data or tree rings and make me laugh.
  • If the universe is locally locally isotropic, as viewed from any point, it is also uniform.
  • Material properties may be temperature-dependent and either isotropic or orthotropic.
British Dictionary definitions for isotropic


having uniform physical properties in all directions
(biology) not having predetermined axes: isotropic eggs
Derived Forms
isotropically, adverb
isotropy, noun
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
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Word Origin and History for isotropic

1864, from iso- + Greek tropikos "belonging to a turning," from tropos "a turning, way, manner" (see trope).

Online Etymology Dictionary, © 2010 Douglas Harper
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isotropic in Medicine

isotropic i·so·trop·ic (ī'sə-trŏp'ĭk, -trō'pĭk)
Identical in all directions.

i·sot'ro·py (ī-sŏt'rə-pē) or i·sot'ro·pism (-pĭz'əm) n.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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isotropic in Science
  (ī'sə-trō'pĭk, -trŏp'ĭk)   
Identical in all directions; invariant with respect to direction. For example, isotropic scattering of light by a substance entails that the intensity of light radiated is the same in all directions. Compare anisotropic.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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