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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.


(Spanish ukaˈjali)
(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


(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.
References in periodicals archive ?
Kakataibo is a Pano language spoken by about 3000-3500 people along the lower Aguaytia River in the Huanuco and Ucayali regions of Peru, says Zariquiey, and his reference grammar is based on information he gathered exclusively in this geographic area, and therefore represents the specific dialect that people there speak.
It left the city of Pucallpa, in the eastern region of Ucayali, and destined for Tingo Maria, around 155 miles west.
Bat diversity from the Rio La Novia Conservation Concession, Ucayali, Peru
Ja o segundo cenario, compreende a regiao Ucayali, e caracterizado pelo maior controle sobre o processo de producao, atraves do uso de material genetico selecionado, fertilizacao sincronizada com a poda, aplicacao de desfolhantes, sistemas de irrigacao e intenso controle de pragas e doencas.
La poblacion de estudio fueron estudiantes de medicina de 7 ciudades de Peru (Lima: Universidad Ricardo Palma; Ucayali: Universidad Nacional de Ucayali; Ica: Universidad Nacional San Luis Gonzaga de Ica; Cajamarca: Universidad Nacional de Cajamarca; Cusco: Universidad San Antonio Abad De Cusco; Huancayo: Universidad Peruana Los Andes; Piura: Universidad Privada Antenor Orrego y Universidad Cesar Vallejo).