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Definition of Groundmass
1. Noun. (geology) the matrix of fine-grained crystalline material in which larger crystals are embedded.
Category relationships: Geology
Generic synonyms: Igneous Rock
Substance meronyms: Porphyritic Rock, Porphyry
Generic synonyms: Igneous Rock
Substance meronyms: Porphyritic Rock, Porphyry
Definition of Groundmass
1. [n -ES]
Lexicographical Neighbors of Groundmass
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