Also found in: Encyclopedia.
A dense igneous rock that consists mainly of olivine and is a source of magnesium.
[After Mount Dun in northern South Island, New Zealand.]
du·nit′ic (do͞o-nĭt′īk, də-) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
relating to dunite
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014