groundmass

English

Etymology

ground +‎ mass

Noun

groundmass (plural groundmasses)

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

References
  • "groundmass" in WordNet 3.1, Princeton University, 2011.
This article is issued from Wiktionary. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.