rock meal
Geology
noun
A powdery mineral deposit, especially rock flour.
Origin
Early 19th century.
- surface chemistry
- surface chuck
- surface coated
- surface color
- surface colour
- surface condensation
- surface condenser
- surface contact
- surface-couched
- surface couching
- surface crossing
- surfaced
- surface damage
- surface density
- surface effect
- surface energy
- surface film
- surface find
- surface friction
- surface gage
- surface gauge
- surface grammar
- surface grinder
- surface-grinding machine
- surface grub