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.

Words nearby seafloor spreading

seadog, seadrome, seafarer, seafaring, seafloor, seafloor spreading, seafood, seaford, seafowl, seafront, seagirt

Cultural definitions for sea floor spreading

sea floor spreading

The process by which new material that lies under the ocean rises and pushes the existing tectonic plates aside, creating new crust as it does so.

notes for sea floor spreading

Sea floor spreading is making the Atlantic Ocean wider by a few inches each year.