from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Structural alteration of a mineral without change of chemical composition.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. a change in the physical structure of a mineral without any chemical change
from the GNU version of the Collaborative International Dictionary of English
- n. The change of one mineral species to another, so as to involve a change in physical characters without alteration of chemical composition.
from The Century Dictionary and Cyclopedia
- n. In mineralogy, a change of the molecular structure of a mineral without alteration of external form or chemical constitution: a variety of pseudomorphism. See paramorph and pseudomorphism.
para- + -morphism (Wiktionary)