al·​lot·​ri·​o·​mor·​phic | \ ə¦lä‧trēə¦mȯrfik \

Definition of allotriomorphic

: marked by a form different from the normal or expected because of development in special circumstances used especially of mineral grains of igneous rocks whose mutual growths have prevented the assumption of outward crystal form contrasted with idiomorphic

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First Known Use of allotriomorphic

1887, in the meaning defined above

History and Etymology for allotriomorphic

Greek allotrio- + English -morphic

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The first known use of allotriomorphic was in 1887

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Cite this Entry

“Allotriomorphic.” Dictionary, Merriam-Webster, Accessed 8 Aug. 2020.

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