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ultramafic
[ uhl-truh-maf-ik ]
/ ˌʌl trəˈmæf ɪk /
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This shows grade level based on the word's complexity.
adjective Geology.
QUIZ
QUIZ YOURSELF ON "WAS" VS. "WERE"!
Were you ready for a quiz on this topic? Well, here it is! See how well you can differentiate between the uses of "was" vs. "were" in this quiz.
Question 1 of 7
“Was” is used for the indicative past tense of “to be,” and “were” is only used for the subjunctive past tense.
Words nearby ultramafic
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022
Scientific definitions for ultramafic
ultramafic
[ ŭl′trə-măf′ĭk ]
Containing mainly mafic minerals. Used of igneous rocks and often used interchangeably with ultrabasic. Dunite is an ultramafic rock.
The American Heritage® Science Dictionary
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