from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Mythology A legendary island in the Atlantic Ocean west of Gibraltar, said by Plato to have sunk beneath the sea during an earthquake.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- proper n. Mythical country said to have sunk into the Atlantic Ocean.
from The Century Dictionary and Cyclopedia
- n. A mythical island of vast extent, mentioned by Plato and other ancient writers, and placed by them in the far West.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. according to legend, an island in the Atlantic Ocean that Plato said was swallowed by an earthquake
From Ancient Greek Ἀτλαντίς (Atlantis), from Ἄτλας (Atlas). (Wiktionary)