mid-ocean ridge
noun
: an elevated region with a central valley on an ocean floor at the boundary between two diverging tectonic plates where new crust forms from upwelling magma
Examples of mid-ocean ridge in a Sentence
Recent Examples on the Web
Such a succession of volcanic rocks is typically found in a spreading zone of a mid-ocean ridge, forming today Earth’s oceanic crust.
—
David Bressan, Forbes.com, 27 June 2025
About 80 percent of Earth’s volcanism happens on the seafloor, with the vast majority occurring along the mid-ocean ridge.
—Maya Wei-Haas, New York Times, 2 May 2025
For the first time, scientists have witnessed an active seafloor volcanic eruption along a mid-ocean ridge.
—Sara Hashemi, Smithsonian Magazine, 8 May 2025
Video This was the first time scientists had witnessed a clearly active eruption along the mid-ocean ridge, a volcanic mountain chain that stretches about 40,000 miles around the globe, like the seams of a baseball.
—Maya Wei-Haas, New York Times, 2 May 2025
See All Example Sentences for mid-ocean ridge
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
David Bressan, Forbes.com, 27 June 2025
About 80 percent of Earth’s volcanism happens on the seafloor, with the vast majority occurring along the mid-ocean ridge.
—Maya Wei-Haas, New York Times, 2 May 2025
For the first time, scientists have witnessed an active seafloor volcanic eruption along a mid-ocean ridge.
—Sara Hashemi, Smithsonian Magazine, 8 May 2025
Video This was the first time scientists had witnessed a clearly active eruption along the mid-ocean ridge, a volcanic mountain chain that stretches about 40,000 miles around the globe, like the seams of a baseball.
—Maya Wei-Haas, New York Times, 2 May 2025
See All Example Sentences for mid-ocean ridge
Cite this Entry
“Mid-ocean ridge.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mid-ocean%20ridge. Accessed 18 Jul. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share