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A·raks(ə-räks′) or A·ras (ə-räs′) Formerly A·rax·es (ə-răk′sēz)
A river rising in northeast Turkey and flowing about 1,070 km (665 mi) eastward, forming much of the border between Turkey and Armenia and between Azerbaijan and Iran before emptying into the Caspian Sea.
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) the Russian name for the Aras
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014