al·loth·i·morph | \əˈläthəˌmȯrf\
plural -s

Definition of allothimorph 

: any constituent of a metamorphic rock that in the new rock still possesses its original crystal boundaries

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Other Words from allothimorph

allothimorphic \⸗¦⸗⸗¦⸗fik \ adjective

First Known Use of allothimorph

circa 1929, in the meaning defined above

History and Etymology for allothimorph

International Scientific Vocabulary allothi- (from Greek allothi elsewhere, old locative of allos other) + -morph; originally formed in German

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The first known use of allothimorph was circa 1929

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