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di•a•base



Pronunciation: (dī'u-bās"), [key]
n. Petrol.
1. a fine-grained gabbro occurring as minor intrusions.
2. Brit.a dark igneous rock consisting essentially of augite and feldspar; an altered dolerite.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

dia-diabatic
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