Is “Diabase” a Scrabble word?
Yes
DIABASE
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Diabase
noun
1.A fine-grained igneous rock composed mostly of pyroxene and feldspar.
Synonyms: dolerite