epidiorite

[ ep-i-dahy-uh-rahyt ]
/ ˌɛp ɪˈdaɪ əˌraɪt /

noun Petrography.

a schistose metamorphic rock resulting from the alteration of augite to hornblende in a gabbro or dolerite.

QUIZZES

HEED THE VOX POPULI, AND TAKE THIS WORD OF THE DAY QUIZ!

Test your memory on these verbal firecrackers from the week of June 29 to July 5!
Question 1 of 7
anchorite

Origin of epidiorite

First recorded in 1885–90; epi- + diorite
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for epidiorite