Definition of diabase
English to English noun - A basic, dark-colored, holocrystalline, igneous rock, consisting essentially of a triclinic feldspar and pyroxene with magnetic iron; -- often limited to rocks pretertiary in age. It includes part of what was early called greenstone.
source: Webster 1913
Visual Synonyms 
Nearby Word
diabase, diapase, database, debase, dibs, dibasic, dipsey, devise, dipsas, dephase, devisee, diffuse, dieback, dative case, daboecia, de bakey, die back, dittybag, diadophis, davis
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