undersea

adjective

un·der·sea | \ ˌən-dər-ˈsē

Definition of undersea

(Entry 1 of 2)

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

adverb

\ ˌən-dər-ˈsēz

variants: or underseas

Definition of undersea (Entry 2 of 2)

: 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: Adjective

Altmaier, a close ally of Chancellor Angela Merkel, stressed that Berlin wants to resolve its differences with the United States over plans for an undersea gas pipeline from Russia to Germany. — Frank Jordans, The Seattle Times, "Germany, US seek to set aside spat over natural gas supplies," 12 Feb. 2019 Argentine Navy officials announced the discovery of the submarine on November 17th, sharing photographs taken of the sub by unmanned undersea vehicles. — Kyle Mizokami, Popular Mechanics, "Lost Argentine Submarine Found One Year After Disappearance," 19 Nov. 2018 Eventually, the escape pod gives way to an undersea farm, which gives way to a fully autonomous base. — Kyle Orland, Ars Technica, "Ars Technica’s best games of 2018," 24 Dec. 2018 From helicopter rides and submarines to the world’s first ultra-luxurious, fully-immersive undersea lounge, technology is bringing Antarctica and its charming neighbor islands to life like never before. — Alex Postman, Condé Nast Traveler, "28 Places Our Travel Specialists Say You Should Go in 2019," 17 Dec. 2018 An undersea landslide capable of causing a tsunami could have caused some shaking, Caplan-Auerbach says, but probably not enough to have been felt by people nearby. — Mary Beth Griggs, The Verge, "Deadly Indonesian tsunami was not caused by an earthquake," 23 Dec. 2018 Honorable Mentions / The Best of the Rest Omega Seamaster Diver 300M A rare diving watch that blends undersea functionality with city style. — Michael Clerizo, WSJ, "The Best Watches of 2018," 18 Dec. 2018 This is possible because of undersea cables and satellite communications. — Angela Chen, The Verge, "A retired Navy captain explains how drones will shape the future of war," 5 Dec. 2018 This goes doubly for a movie in which much of the action takes place undersea alongside battle-ready sharks. — Vanessa Chow, Glamour, "Amber Heard Is Nobody’s Victim," 27 Nov. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'undersea.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.