subsea

adjective
sub·​sea | \ ˌsəb-ˈsē How to pronounce subsea (audio) \
variants: or less commonly sub-sea

Definition of subsea

1 : existing or occurring below the surface of the sea subsea currents The island, an upthrust of volcanic rock, lies along the Norfolk Ridge, an 1,100-mile line of subsea mountains.— Michael Davie
2 : existing or occurring under the seafloor subsea oil wells

First Known Use of subsea

1817, in the meaning defined at sense 1

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Cite this Entry

“Subsea.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/subsea. Accessed 14 Jun. 2021.

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