0%

ALL meanings of ultrabasic

ul·tra·ba·sic
U u
  • adjective ultrabasic (of rocks) containing iron and magnesium, with little or no silica. 1
  • adjective ultrabasic (of such igneous rocks as peridotite) containing less than 45 per cent silica 0
Was this page helpful?
Yes No
Thank you for your feedback! Tell your friends about this page
Tell us why?