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 (pē′lē-ən, -ôn′), Mount
A peak, 1,624 m (5,328 ft) high, of northeast Greece in eastern Thessaly. According to Greek legend, it was the home of the centaurs, especially Chiron.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Placename) a mountain in NE Greece, in E Thessaly. In Greek mythology it was the home of the centaurs. Height: 1548 m (5079 ft). Modern Greek name: Pílion
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈpi li ən)
Mount, a mountain near the E coast of Greece, in Thessaly. 5252 ft. (1600 m).
pile (or heap) Pelion on Ossa,
a. to make matters worse; aggravate or compound a situation.
b. to engage in vain or futile efforts.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.