subsea

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

adjective

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

a subsea specialist in oil rigs.

Origin of subsea

sub- + sea

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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