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undersea definition

under·sea (un′dər sē′; for adv., usually un′dər sē′)

adjective, adverb

beneath the surface of the sea
also underseas un′der·seas′

adverb

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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