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Cassini

American  
[kuh-see-nee, kah-] / kəˈsi ni, kɑ- /

noun

  1. Oleg Oleg Cassini-Loiewski, 1913–2006, U.S. fashion designer and businessman, born in France.

  2. a walled plain in the first quadrant of the face of the moon: about 36 miles (56 km) in diameter.

  3. Geometry. oval of Cassini.

Cassini British  
/ kæˈsiːnɪ /

noun

  1. Giovanni Domenico. 1625–1712, French astronomer, born in Italy. He discovered (1675) Cassini's division , the gap that divides Saturn's rings into two parts, and four of Saturn's moons

"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

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.

Toward the end of its mission, Cassini measured how mass is distributed inside Saturn.

From Science Daily • Feb. 27, 2026

The Cassini mission began in 1997 and continued for nearly two decades, gathering extensive information about Saturn and its 274 moons.

From Science Daily • Dec. 20, 2025

Earlier interpretations of data from NASA's Cassini mission to Saturn led scientists to propose a deep ocean of liquid water hidden beneath Titan's ice.

From Science Daily • Dec. 20, 2025

They did so by analyzing data from the Cassini mission and using it to create on Earth a simulated version of the hydrothermal fields at the bottom of Enceladus' ocean.

From Salon • May 29, 2024

“We ain’t going to shoot them,” Joe Cassini said.

From "Frightful's Mountain" by Jean Craighead George

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.