Found in the following dictionaries
Enable (Words with friends)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
"Groundmass" Definition
noun
The fine-grained crystalline base of porphyritic rock in which larger crystals are embedded.
Source: American Heritage Dictionary
The fine-grained or glassy base of a porphyry in which the larger distinct crystals are embedded.
Source: Merriam-Webster
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