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.
The data included carbon isotope records, measurements of phosphorus accumulation in deep-sea sediments, and a newer iodine-to-calcium method for reconstructing ancient ocean oxygen levels.
From Science Daily ● Jul. 16, 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
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
The substance inside was made from the dried and crushed bodies of luminous deep-sea fishes.
From "Six of Crows" by Leigh Bardugo
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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.