allotropism
al·lot·ro·pism
noun
1.
the phenomenon of an element existing in two or more physical forms
Origin
From allo- + -tropism.
Related words
Broader terms
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.