Allomorph :: Allomorph (n.) 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..
Allomorph :: Allomorph (n.) A variety of pseudomorph which has undergone partial or complete change or substitution of material; -- thus limonite is frequently an allomorph after pyrite.
Allomorphic :: Allomorphic (a.) Of or pertaining to allomorphism.
Allomorphism :: Allomorphism (n.) The property which constitutes an allomorph; the change involved in becoming an allomorph.