Meaning Of The Word Groundmass

Real Dictionary

What's the definition of Groundmass? Find Groundmass meanings, definitions and more at the Real Dictionary online.

Groundmass Meaning

Groundmass Definition
Groundmass Definition

What's The Definition Of Groundmass?

groundmass in American English
the small-grained matrix in which larger crystals are embedded
noun: the crystalline, granular, or glassy base or matrix of a porphyritic or other igneous rock, in which the more prominent crystals are embedded

groundmass in British English
noun: the matrix of igneous rocks, such as porphyry, in which larger crystals (phenocrysts) are embedded

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