groundmass

English edit

Etymology edit

ground +‎ mass

Noun edit

groundmass (plural groundmasses)

(geology) The matrix of fine-grained crystalline material in which larger crystals are embedded.

References edit

"groundmass" in WordNet 3.1, Princeton University, 2011.

Retrieved from "https://en.wiktionary.org/w/index.php?title=groundmass&oldid=60452155"