• synonyms


noun Petrography.
  1. a schistose metamorphic rock resulting from the alteration of augite to hornblende in a gabbro or dolerite.
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Origin of epidiorite

First recorded in 1885–90; epi- + diorite
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for epidiorite

Historical Examples of epidiorite

  • The metamorphic rocks are associated with bands of epidiorite which have shared in the folding and metamorphism of the region.

    Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 5