Cousteau

American

[koo-stoh] / kuˈstoʊ /

noun

Jacques Yves 1910–97, French naval officer, author, and underseas explorer: developed the Aqua-Lung.

Cousteau British

/ kusto /

noun

Jacques Yves (ʒɑk iv). 1910–97, French underwater explorer

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Cousteau Scientific

/ ko̅o̅-stō′ /

French underwater explorer who helped develop the Aqua-Lung (an underwater breathing apparatus) and designed the bathyscaphe and a small, deep-sea submarine known as a diving saucer. Cousteau also devised an underwater television system and produced several films that widely popularized marine biology.

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.

"Cousteau and his crew inspired generations to look beneath the surface," said Lerosey-Aubril, "it seemed fitting to name this ancient marine animal after someone who changed the way we see ocean life."

From Science Daily • Apr. 3, 2026

Fabien Cousteau has followed a similar path, exploring the sea as a scientist and working to protect the oceans.

From NewsForKids.net • Mar. 25, 2024

He’s been at the work ever since he was a university student and the venerated oceanographer Jacques Cousteau visited his class.

From National Geographic • Feb. 5, 2024

He had been taught to dive by oceanographer Jacques Cousteau, and during the 1960s had been Florida State University's diving course training director.

From BBC • May 28, 2023

Thanks to Cousteau and Gagnan, divers could explore parts of the ocean that had never been seen before, and were able to stay submerged longer than ever before to examine it.

From "Shipwrecked!" by Martin W. Sandler

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023