Allomorph
Pronunciation : Al"lo*morph
Part of Speech : n.
Etymology : [Gr. (Min.) (a) Any one of two or more distinct crystalline forms of the same substance; or the substance having such forms; -- as, carbonate of lime occurs in the allomorphs calcite and aragonite. (b) A variety of pseudomorph which has undergone partial
Source : Webster's Unabridged Dictionary, 1913