diorite

noun
di·​o·​rite | \ ˈdī-ə-ˌrīt How to pronounce diorite (audio) \

Definition of diorite

: a granular crystalline igneous rock commonly of acid plagioclase and hornblende, pyroxene, or biotite

Other Words from diorite

dioritic \ ˌdī-​ə-​ˈri-​tik How to pronounce dioritic (audio) \ adjective

First Known Use of diorite

1826, in the meaning defined above

History and Etymology for diorite

French, irregular from Greek diorizein to distinguish, from dia- + horizein to define — more at horizon

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