dolerite

noun
dol·er·ite | \ˈdä-lə-ˌrīt \

Definition of dolerite 

1 : any of various coarse basalts

2 chiefly British : diabase sense 3

Other Words from dolerite

doleritic \ˌdä-lə-ˈri-tik \ adjective

First Known Use of dolerite

1838, in the meaning defined at sense 1

History and Etymology for dolerite

French dolérite, from Greek doleros deceitful, from dolos deceit; from its being easily mistaken for diorite

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The first known use of dolerite was in 1838

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