seafloor spreading

noun
a process in which new ocean floor is created as molten material from the earth's mantle rises in margins between plates or ridges and spreads out.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To seafloor spreading
Explore Dictionary.com
Previous Definition: seafloor
Next Definition: seafloor-spreading
Words Near: seafloor spreading
More from Thesaurus.com
Synonyms and Antonyms for seafloor spreading
More from Reference.com
Search for articles containing seafloor spreading
Dictionary.com Word FAQs

Dictionary.com presents 366 FAQs, incorporating some of the frequently asked questions from the past with newer queries.

Example sentences
Sea level change due to oscillations in seafloor spreading rate.
Finally, volcanos sometimes form in the middle of the ocean, above seafloor spreading centers.
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature