• synonyms


  1. a river in S central South America, flowing SE from S Bolivia along the boundary between Paraguay and Argentina to the Paraguay River at Asunción. 1000 miles (1610 km) long.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for pilcomayo

Historical Examples

  • It was the Pilcomayo, one of the most considerable affluents of the Rio Paraguai.

    The Guide of the Desert

    Gustave Aimard

  • Important tributaries are the Pilcomayo, the Vermejo, and the Salado.

  • The capital is Asunçion , at the confluence of the Pilcomayo and Paraguay.

    The Nuttall Encyclopaedia

    Edited by Rev. James Wood

  • Look at the horses; before we have got half the distance which separates us from the Pilcomayo, the enemy will be upon us.

  • Mr. Graham Kerr saw it in troops on the banks of the Pilcomayo river.

British Dictionary definitions for pilcomayo


  1. 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)
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012