deep-sea
Americanadjective
noun
Etymology
Origin of deep-sea
First recorded in 1620–30
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Conservationists say this and other extraordinary deep-sea snails, limpets, mussels and clams could be threatened by plans to mine valuable minerals from the deep seabed.
From BBC ● Jul. 9, 2026
The agency approached Hughes, the aerospace businessman, to build a massive deep-sea drill-ship called the Hughes Glomar Explorer, and paid him more than $350 million—billions in today’s money.
From The Wall Street Journal ● Jun. 16, 2026
It was known that when whales die and drop to the seafloor, their sunken bodies -- called "whale falls" -- provide a source of food to deep-sea creatures.
From Barron's ● Jun. 10, 2026
The black box was found after months of deep-sea searches in 2011.
From BBC ● May 21, 2026
All the harm done to the ocean wilderness had started right there, by that deep-sea mining robot.
From "The Wild Robot Protects" by Peter Brown
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
