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subsurface

American  
[suhb-sur-fuhs, suhb-sur-] / sʌbˈsɜr fəs, ˈsʌbˌsɜr- /

adjective

  1. below the surface, especially of a body of water.


Etymology

Origin of subsurface

First recorded in 1770–80; sub- + surface

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

“The project shares many similarities with upstream operations, drawing on core subsurface, drilling and production expertise,” he said.

From The Wall Street Journal Jul. 6, 2026

Decades of geological records, subsurface physics, and mechanical telemetry are proving invaluable for asset management and monitoring, along with enabling advanced autonomous drilling capabilities.

From Barron's May 28, 2026

It rotates on its side, has an irregular magnetic field, and is surrounded by moons that may contain subsurface oceans beneath icy crusts.

From Science Daily Apr. 3, 2026

Paired with modern airborne methods, the old maps can help target and reduce the cost of subsurface mapping—especially due to the difficulty and expense of operating in modern-day Congo.

From The Wall Street Journal Mar. 28, 2026

There should be permafrost, a perpetually frozen subsurface.

From "Cosmos" by Carl Sagan

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