diorite

play
noun di·o·rite \ ˈdī-ə-ˌrīt \

Definition of diorite

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

dioritic

play \ˌdī-ə-ˈri-tik\ adjective

Origin and Etymology of diorite

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


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