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The Collaborative International Dictionary
Paramorph

Paramorph \Par"a*morph\, n. [Pref. para- + Gr. morfh` form.]

  1. (Min.) A kind of pseudomorph, in which there has been a change of physical characters, by a change in crystal structure without alteration of chemical composition, as the change of aragonite to calcite; called also allomorph.

  2. (Biol.) A taxonomic variant observed within a species, for which a more specific term has not been assigned. [PJC] -- par`a*mor"phic, a. -- par`a*mor"phous, a.

Wiktionary
paramorph

n. (context mineralogy English) A kind of pseudomorph in which there has been a change of physical characteristics without alteration of chemical composition, as in the change of aragonite to calcite.