sub·sur·face
ˈsəb-ˌsər-fəs 
: earth material (such as rock) near but not exposed at the surface of the ground
sub·sur·face
ˌsəb-ˈsər-fəs
: of, relating to, or being something located beneath a surface and especially underground
Examples of subsurface in a Sentence
Adjective
a sandy wasteland that gave little hint of its subsurface wealth
Recent Examples on the Web
Sharmila Kuthunur, Space.com, 13 May 2025
Titan shows all the characteristics of a planet – including rivers, lakes, clouds, rain and even a salty subsurface ocean.
—Janet Loehrke, USA Today, 12 May 2025
Liz Kruesi, Discover Magazine, 28 Oct. 2015
An entire ocean’s worth is unlikely, but a significant amount of subsurface water isn’t.
—John Wenz, Popular Mechanics, 8 Dec. 2022
See All Example Sentences for subsurface
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Noun
Infrared imaging will also help pinpoint where Europa's vast subsurface ocean might lie closest to the surface, scientists say.
—Sharmila Kuthunur, Space.com, 13 May 2025
Titan shows all the characteristics of a planet – including rivers, lakes, clouds, rain and even a salty subsurface ocean.
—Janet Loehrke, USA Today, 12 May 2025
Adjective
So Marco Mastrogiuseppe, a researcher on the Cassini team who had used instruments like RADAR to map subsurface water on Mars, decided to try something.
—Liz Kruesi, Discover Magazine, 28 Oct. 2015
An entire ocean’s worth is unlikely, but a significant amount of subsurface water isn’t.
—John Wenz, Popular Mechanics, 8 Dec. 2022
See All Example Sentences for subsurface
Cite this Entry
“Subsurface.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/subsurface. Accessed 20 May. 2025.
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