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[at-lan-tis] /ætˈlæn tɪs/
a legendary island, first mentioned by Plato, said to have existed in the Atlantic Ocean west of Gibraltar and to have sunk beneath the sea, but linked by some modern archaeologists with the island of Thera, the surviving remnant of a much larger island destroyed by a volcanic eruption c1500 b.c.
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Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for Atlantis


(in ancient legend) a continent said to have sunk beneath the Atlantic Ocean west of the Straits of Gibraltar
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
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Word Origin and History for Atlantis

mythical island-nation, from Greek Atlantis, literally "daughter of Atlas." All references trace to Plato's dialogues "Timaeus" and "Critias," both written c.360 B.C.E.

Online Etymology Dictionary, © 2010 Douglas Harper
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Atlantis in Culture

Atlantis definition

A kingdom in classical mythology. According to legend, it was once an island in the Atlantic Ocean, was swallowed up in an earthquake, and is now covered by the sea.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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