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dunite

[ doo-nahyt, duhn-ahyt ]
/ ˈdu naɪt, ˈdʌn aɪt /

noun

a coarse-grained igneous rock composed almost entirely of olivine.

Nearby words

  1. dunger,
  2. dunghill,
  3. dunham,
  4. dunham, katherine,
  5. duniewassal,
  6. duniwassal,
  7. dunk,
  8. dunk shot,
  9. dunkards,
  10. dunker

Origin of dunite

1865–70; named after Mt. Dun in New Zealand, where it is found; see -ite1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for dunite

dunite

/ (ˈdʌnaɪt) /

noun

an ultrabasic igneous rock consisting mainly of olivine

Word Origin for dunite

C19: named after Dun Mountain, a mountain in New Zealand where it is abundant
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Science definitions for dunite

dunite

[ dōō′nīt′, dŭn′īt′ ]

A coarse-grained igneous rock that consists mainly of olivine.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.