alkali rock

noun Mineralogy.

any igneous rock with a marked preponderance of alkali and a low percentage of silica.

Nearby words

  1. alkali grass,
  2. alkali metal,
  3. alkali metals,
  4. alkali metaprotein,
  5. alkali reserve,
  6. alkali soil,
  7. alkali-loving,
  8. alkalic,
  9. alkalify,
  10. alkalimeter Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019