Advertisement - Continue reading below

Definition of "plutonic" [plu•ton•ic]

  • Of deep igneous or magmatic origin: plutonic rocks. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "plutonic" in a sentence
  • "Most of them want to be my "plutonic" friend but want nothing to do with me in the long term romantic dept."
  • ""plutonic" friend but want nothing to do with me in the long term romantic dept."
  • "The mountain ranges (sky islands) are a geologic mix of Tertiary volcanic and intrusive granitic rocks, Paleozoic sedimentary layers, and some Precambrian granitic plutonic rocks."