an·i·so·trop·ic  ( ăn- ī′s ə-tr ŏp ĭk, -tr ōp ĭk)
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adj.1. Not isotropic. 2. Physics Having properties that differ based on the direction of measurement.
an·i′so·tropi·cal·ly adv. an′i·sotro·pism (-sŏtrə-pĭz′əm), an′i·sotro·py (-sŏtrə-pē) n. |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
Indo-European Roots
Semitic Roots
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.
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