subsea

American  

[suhb-see, suhb-see] / sʌbˈsi, ˈsʌbˌsi /

adjective

1. occurring, working, etc., under the sea or ocean.

   a subsea specialist in oil rigs.

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Etymology

Origin of subsea

sub- + sea

Example Sentences

Oil is pumped to the island through subsea pipelines and stored in massive storage facilities before being loaded onto tankers.

From The Wall Street Journal • Mar. 14, 2026

"India is going to have an extraordinary trajectory with AI and we want to be a partner," he said, pledging to build subsea cables as part of an existing $15 billion AI infrastructure investment.

From Barron's • Feb. 18, 2026

While military experts say Greenland isn’t a focus of Russian naval activity, there is consensus that Moscow is using its formidable subsea know-how and resources to test Western countries.

From The Wall Street Journal • Feb. 11, 2026

Cables on pylons would carry the electricity from Caithness to Peterhead in Aberdeenshire, where it will link to a planned subsea cable running to Lincolnshire in the East Midlands.

From BBC • Jan. 20, 2026

Down under the waters of the Long Island Sound she was taken in a glass-walled subsea vessel, where in a green and wavering world, quaint and curious sea-things ogled her and wiggled suddenly away.

From "I, Robot" by Isaac Asimov