groundmass
1. [ noun ] (geology) the matrix of fine-grained crystalline material in which larger crystals are embedded
Related terms: igneous_rock porphyry
Similar spelling:   ground_bass
  ground_glass
  grandma
  grounds
  groundless
  Grundman
  grandmaster
  grandness
  groundsel
  ground_cedar
  groundsman
  greyhound
  groundfish
  grandad
  grandpa
  ground_plan
  ground_rose
  Grand_Lama
  groundspeed
  groundsheet
  granddad
  grounder
  ground_snake
  ground_sloth
  ground_noise
  ground_swell
  ground_state
  groundbreaker
  grand_mal
  grandaunt
  groundskeeper
  ground_stroke
  groundhog
  grounding
  ground_almond
  grandson
  groundnut
  ground-shaker
  groundwork
  granddaddy
  grandiose
  Grandison
  Grindelia
  groundling
  grind_away
  groundball
  ground_fir
  ground_ivy
  ground_out
  grandma_moses
  Grundyism