[ uhl-truh-maf-ik ]
/ ˌʌl trəˈmæf ɪk /
THIS WORD OF THE DAY QUIZ IS HARDLY A DODDLE!
But you can ace it no problem if you remember the words from September 7–13, 2020!
Question 1 of 7
What does “Promethean” mean?
Words nearby ultramafic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
Scientific definitions for 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 Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.