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
In April 2022, the senior military officers say, they approached her through a member of their unit who was a hobby deep-sea diver.
From The Wall Street Journal ● Jun. 12, 2026
About a decade ago, Japan discovered a large, deep-sea rare earth deposit that is considered the world’s third-largest high-quality, mineral-rich rare earth reserve.
From Barron's ● May 20, 2026
It was a leftover structure from a deep-sea anemone, specifically the base that once attached the animal to the seafloor.
From Science Daily ● Apr. 27, 2026
Crusher was designed for a single purpose: to mine deep-sea minerals.
From "The Wild Robot Protects" by Peter Brown
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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.