Tethys
Americannoun
-
Classical Mythology. a Titan, a daughter of Uranus and Gaia, the wife of Oceanus and mother of the Oceanids and river gods.
-
Astronomy. one of the moons of Saturn.
-
Geology. the Mesozoic ocean or seaway of which the Mediterranean Sea is a greatly shrunken remnant.
noun
noun
noun
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.
"We analyzed a compilation of thermal history models in function of plate-tectonic models for the Tethys Ocean evolution, as well as deep-time precipitation and mantle-convection models."
From Science Daily • May 18, 2026
The species, described in a paper in the journal Communications Biology, inhabited the Tethys Sea, the tropical precursor of the Mediterranean, which covered about a third of what is now northern Africa.
From New York Times • Sep. 25, 2023
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
Protathlitis roamed a coastal region along the Tethys Sea, an ocean whose remnants include the Mediterranean Sea.
From Reuters • May 18, 2023
The Titans Ocean and Tethys brought her up.
From "Mythology: Timeless Tales of Gods and Heroes" by Edith Hamilton
![]()
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.