Usually means: Extremely basic, low silica content.
Definitions Related words Mentions History
We found 12 dictionaries that define the word ultrabasic:

General (10 matching dictionaries)
  1. ultrabasic: Merriam-Webster
  2. ultrabasic: Oxford Learner's Dictionaries
  3. ultrabasic: American Heritage Dictionary of the English Language
  4. ultrabasic: Collins English Dictionary
  5. ultrabasic: Wordnik
  6. ultrabasic: Wiktionary
  7. ultrabasic: Infoplease Dictionary
  8. ultrabasic: Dictionary.com
  9. Ultrabasic: Wikipedia, the Free Encyclopedia
  10. ultrabasic: TheFreeDictionary.com

Computing (1 matching dictionary)
  1. ultrabasic: Encyclopedia

Science (1 matching dictionary)
  1. Ultrabasic: Eric Weisstein's World of Chemistry

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Definitions from Wiktionary (ultrabasic)

▸ adjective:  (geology) ultramafic
▸ noun:  (geology) ultramafic

Similar:
ultramaphic, ultrapotassic, ultrafamic, ultramafic, ultracarbonaceous, uranitic, acidic, uranic, magnesic, undersaturated, more...

Types:
peridotite, dunite, pyroxenite, serpentinite, eclogite, websterite, harzburgite, lherzolite, more...

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Similar:
ultramaphic, ultrapotassic, ultrafamic, ultramafic, ultracarbonaceous, uranitic, acidic, uranic, magnesic, undersaturated, more...

Types:
peridotite, dunite, pyroxenite, serpentinite, eclogite, websterite, harzburgite, lherzolite, more...



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