• synonyms


or al·lo·trop·i·cal

[al-uh-trop-ik, -troh-pik or al-uh-trop-i-kuh l, -troh-pi-kuh l]
  1. pertaining to or characterized by allotropy.
Show More

Origin of allotropic

First recorded in 1875–80; allotrop(y) + -ic
Related formsal·lo·trop·i·cal·ly, adverbal·lo·tro·pic·i·ty [al-uh-truh-pis-i-tee] /ˌæl ə trəˈpɪs ɪ ti/, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for allotropic

Historical Examples

  • They have their allotropic forms, but cannot be changed into one another.

    The Story of the Earth and Man

    J. W. Dawson

  • I am a gentleman in allotropic form'; that was as much as I ever heard him say.

    Grey Roses

    Henry Harland

  • In short, these elements seem to impede the allotropic change of the iron itself.

  • Red phosphorus, Allotropic phosphorus; Phosphorus fuscus, P. ruber.

  • Like this latter element, it is capable of assuming three allotropic forms—the amorphous, the vitreous, and the crystalline.

allotropic in Medicine


  1. Relating to allotropism.
  2. Characterizing one who is preoccupied with the reactions of others.
Show More
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.