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trimorph

[trahy-mawrf] /ˈtraɪ mɔrf/
noun, Crystallography
1.
a substance existing in three structurally distinct forms; a trimorphous substance.
2.
any of the three forms.
Origin
1905-1910
1905-10; < Greek trímorphos having three forms. See tri-, -morph
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for trimorph

trimorph

/ˈtraɪmɔːf/
noun
1.
a substance, esp a mineral, that exists in three distinct forms
2.
any of the forms in which such a structure exists
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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