Definition of undersea in English:

undersea

Syllabification: un·der·sea
Pronunciation: /ˌəndərˈsē
 
/

adjective

Below the sea or the surface of the sea: undersea cables
More example sentences
  • Some of the salt in the oceans comes from undersea volcanoes and hydrothermal vents.
  • Hydrothermal vents result from undersea cracks in the earth's crust, which allow lava and hot fluids to seep out.
  • In Asia, the company's subsidiary owns undersea cables, fiber optic rings, and Web hosting centers in several cities.

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Word of the day grammarian
Pronunciation: grəˈmɛːrɪən
noun
a person who studies and writes about grammar