porphyroclast
/ˈpɔːfɪrəklɑːst/ /ˈpɔːfɪrəklast/Geology
noun
A relatively large grain remaining in a finer groundmass in a rock which has undergone dynamic metamorphism.
Origin
1930s; earliest use found in Journal of Geology. From porphyro- + -clast, after porphyroclastic.
- green vitriol
- greenware
- greenwash
- greenwashing
- green water
- green wax
- greenway
- green weenie
- Greenwell
- Greenwell's glory
- green welly brigade
- green whey
- Greenwich
- Greenwich Mean Time
- Greenwich meridian
- Greenwich star
- Greenwich time
- Greenwich Village
- Greenwich Villager
- greenwing
- green-winged
- green-winged orchid
- green-winged orchis
- green with envy
- green-woman