Definition of "deep-sea" []

• Of, relating to, or taking place in the deeper parts of the sea: deep-sea exploration. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "We shouldn't have to choose between campaigning for a strong international climate agreement, OR campaigning against long term carbon lock-in think coal, tar sands, deep-sea oil drilling, OR campaigning for low carbon development and a green economy."
• "At the same time, China's first manned deep-sea submersible surpassed U.S. capabilities in a race to explore resources in the deepest parts of the world's oceans."
• "There are beautiful branching deep-sea corals in yellow, brown and white, also deep sponges, cutthroat eels, rattail fish, red crabs, luminescent purple shimmering squid and other life abundant amidst the marine snow, organic detritus falling from above."