diabase

noun
di·a·base | \ˈdī-ə-ˌbās \

Definition of diabase 

1 archaic : diorite

2 chiefly British : an altered basalt

3 : a fine-grained rock of the composition of gabbro but with an ophitic texture

Other Words from diabase

diabasic \ˌdī-ə-ˈbā-sik \ adjective

First Known Use of diabase

1811, in the meaning defined at sense 1

History and Etymology for diabase

French, probably from Greek diabasis act of crossing over, from diabainein to cross over, from dia- + bainein to go — more at come

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Dictionary Entries near diabase

DIA

dia-

diabantite

diabase

diabatic

diabetes

diabetes insipidus

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The first known use of diabase was in 1811

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