undersea

1 of 2

adjective

un·​der·​sea ˌən-dər-ˈsē How to pronounce undersea (audio)
1
: being or carried on under the sea or under the surface of the sea
undersea oil deposits
undersea fighting
2
: designed for use under the surface of the sea
an undersea fleet

undersea

2 of 2

adverb

variants or underseas
: under the sea : beneath the surface of the sea
photographs taken undersea

Examples of undersea in a Sentence

Adjective They are conducting undersea research.
Recent Examples on the Web
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Adjective
In October 2023, a Chinese ship dragged its anchor hundreds of miles, destroying undersea cables and an undersea gas line connecting Finland and Estonia. Rebecca Rosman, NPR, 31 Dec. 2024 Unseen but crucial, undersea cables prop up internet services and communications, as well as many other aspects of daily life often taken for granted. George Monastiriakos, Newsweek, 30 Dec. 2024 The incident follows a concerning trend in the West of undersea cable disruptions in Europe. Brad Dress, The Hill, 26 Dec. 2024 As this article was going to press, two undersea cables in the Baltic Sea—connecting Sweden with Lithuania and Finland with Germany—had been severed, with suspicion resting on a Chinese merchant vessel in the region. IEEE Spectrum, 24 Dec. 2024 See all Example Sentences for undersea 

Word History

First Known Use

Adjective

1613, in the meaning defined at sense 1

Adverb

1645, in the meaning defined above

Time Traveler
The first known use of undersea was in 1613

Dictionary Entries Near undersea

Cite this Entry

“Undersea.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undersea. Accessed 7 Jan. 2025.

Kids Definition

undersea

adjective
un·​der·​sea
ˈən-dər-ˈsē
1
: being or carried on under the sea or under the surface of the sea
undersea oil deposits
undersea warfare
2
: designed for use under the surface of the sea
undersea fleet

More from Merriam-Webster on undersea

Last Updated: - Updated example sentences
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