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[poh-sahyd-n, puh-] /poʊˈsaɪd n, pə-/
the ancient Greek god of the sea, with the power to cause earthquakes, identified by the Romans with Neptune.
Military. a 34-foot (10-meter), submarine-launched U.S. ballistic missile with up to 10 warheads and a range of 2800 miles (4502 km). Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for Poseidon


(Greek myth) the god of the sea and of earthquakes; brother of Zeus, Hades, and Hera. He is generally depicted in art wielding a trident Roman counterpart Neptune
a US submarine-launched ballistic missile
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 Poseidon

Greek god of the sea and earthquakes, Greek Poseidon (Doric Poteidan), of uncertain origin.

Online Etymology Dictionary, © 2010 Douglas Harper
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Poseidon in Culture
Poseidon [(puh-seyed-n)]

The Greek name for Neptune, the god in classical mythology who ruled the sea.

The 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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