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A river of central South America rising in central Bolivia and flowing about 1,610 km (1,000 mi) southeast along the Argentina-Paraguay border to the Paraguay River.
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 river in S central South America, rising in W central Bolivia and flowing southeast, forming the border between Argentina and Paraguay, to the Paraguay River at Asunción. Length: about 1600 km (1000 miles)
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
Pil•co•ma•yo(ˌpil kəˈmɑ yoʊ)
a river in S central South America, flowing SE from Bolivia along the border between Paraguay and Argentina to the Paraguay River at Asunción. 1000 mi. (1610 km) long.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.