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Tethys

American  
[tee-this] / ˈti θɪs /

noun

  1. Classical Mythology. a Titan, a daughter of Uranus and Gaia, the wife of Oceanus and mother of the Oceanids and river gods.

  2. Astronomy. one of the moons of Saturn.

  3. Geology. the Mesozoic ocean or seaway of which the Mediterranean Sea is a greatly shrunken remnant.


Tethys 1 British  
/ ˈtiːθɪs, ˈtɛθ- /

noun

  1. Greek myth a Titaness and sea goddess, wife of Oceanus

"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

Tethys 2 British  
/ ˈtiːθɪs, ˈtɛθ- /

noun

  1. a large satellite of the planet Saturn

"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

Tethys 3 British  
/ ˈtɛθ-, ˈtiːθɪs /

noun

  1. the sea that lay between Laurasia and Gondwanaland, the two supercontinents formed by the first split of the larger supercontinent Pangaea. The Tethys Sea can be regarded as the predecessor of today's smaller Mediterranean See also Pangaea

"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

Etymology

Origin of Tethys

From Latin Tēthys, from Greek Tēthýs; further origin uncertain; Tethys def. 1 was first recorded in 1700–10; Tethys def. 2 in 1845–50; and Tethys def. 3 in 1890–95

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 Tethys Ocean once stretched across a vast area of the planet before gradually disappearing during the Meso-Cenozoic period, which covers the last 250 million years.

From Science Daily • May 18, 2026

As the planet's tectonic plates shifted over molten rock 140 million years ago, and as India's land mass collided with the Asian continent, a previously-existing ancient ocean known as Tethys could have disappeared.

From Salon • Jul. 26, 2023

Back then, the southern supercontinent of Gondwana was in the process of disbanding, and the ancient Tethys Sea reached from the Pacific Ocean to the Mediterranean.

From Scientific American • Mar. 14, 2023

It was good to be the size of a car, considering the hazardous traffic in the ancient Tethys Sea in which Leviathanochelys swam.

From Reuters • Nov. 17, 2022

The Titans Ocean and Tethys brought her up.

From "Mythology: Timeless Tales of Gods and Heroes" by Edith Hamilton

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