Also found in: Encyclopedia, Wikipedia.
A river of eastern Peru flowing about 1,610 km (1,000 mi) northward to join the Marañón River and form the Amazon 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 E Peru, flowing north into the Marañón above Iquitos. Length: 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
U•ca•ya•li(ˌu kɑˈyɑ li)
a river in central Peru, flowing N and joining the Marañón to form the Amazon. 1200 mi. (1930 km) long.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.