The meaning of UNDERSEA is being or carried on under the sea or under the surface of the sea. How to use undersea in a sentence.

Included in the scope of undersea exploration are the physical and chemical properties of seawater, all manner of life in the sea, and the geological and geophysical features of the …

There is the undersea mineral war waged by those who are trying rapidly to exploit the resources of the sea bed. We are only just beginning to address ourselves to the extraction of undersea …

undersea (ˈʌndəˌsiː) adj, adv (Physical Geography) below the surface of the sea

Dec 25, 2025 · undersea Add to list /ˈʌndərˌsi/ IPA guide Definitions of undersea adjective beneath the surface of the sea synonyms: submarine

Definition of undersea adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Dec 14, 2025 · In less than a decade, these otherworldly undersea landscapes, lush with life, have all but disappeared along 200 miles of coast north of San Francisco's Golden Gate …

undersea meaning, definition, what is undersea: happening or existing below the surface ...: Learn more.

UNDERSEA definition: located, carried on, or used under the surface of the sea. See examples of undersea used in a sentence.

undersea in American English (ˈʌndərˌsi ; for adv., usually ˌʌndərˈsi ) adjective, adverb beneath the surface of the sea