undersea
- adjective
- /ˌʌndərˈsiː/
- Paul would be creating the undersea computer graphics that were his specialty.
- undersea tunnels
- undersea cable
- undersea vehicles
If sea levels can rise and undersea volcanoes erupt to create new land masses, does that mean Earth is gradually becoming a bigger sphere over time?
- If sea levels can rise and undersea volcanoes erupt to create new land masses, does that mean Earth is gradually becoming a bigger sphere over time?
Examples
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It's a worldwide network of undersea acoustic cables dating back to the Cold War.
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Late winter storms send algae deep undersea, where there isn't enough light.
Academic text (2011) -
Then we'll go for the undersea submarine ride.
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It's the last undersea compression diving base in the world.
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We need to see deep trenches, the undersea mountains, and understand life in the deep sea.
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Other creatures, too, emerged from the depths to swell the ranks of the undersea army.
Fiction book (1992) -
Bea also worries about the undersea oil and gas pipeline infrastructure that connects platforms to the shore.
Academic text (2007) -
A mysterious undersea world is revealed through a camera that washes ashore in this year's Caldecott Award winner.
Academic text (2007) -
Oceanographers use the Posidonia sonar system to track remotely operated undersea vehicles from their survey ship.
Academic text (2000) -
The company has built a worldwide network of undersea cables that carry huge amounts of computer data.
Synonyms
Below the surface of water where plants and animals live
Located under the ocean or under the ocean floor
Under the surface of the sea
Under the sea, used for building pipelines or laying cables
Located under the ocean bed
Completely under the surface of water
A plant or thing that is completely under water
Existing or happening under water
How Deep
Surface Forms
Morphology
Etymology
Undersea is made from under ('below') and sea ('the ocean'), so it literally means 'below the sea'. That's why we use it for things like cables, caves, or animals that are located or used under the surface of the sea.