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The region of higher land between two rivers that are in the same drainage system.

[Back-formation from interfluvial : inter- + fluvial.]

in′ter·flu′vi·al adj.
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.


(Physical Geography) a ridge or area of land dividing two river valleys
[C20: back formation from interfluvial, from inter- + Latin fluvius river]
ˌinterˈfluvial adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
The main territory for this culture was the Volga--Oka interfluve area in central Russia.
Ishim Formation serves as a regional stratotype of the southwestern part of the West Siberian Plain (Tobol-Ishim interfluve), which recorded the sedimentation conditions close to Miocene-Pliocene boundary.
The geomorphons elements that define this unit occur more significantly in a strip that follows the centre-western part of the state associated with the Geomorphologic Domain Cristalandia Depression, which comprises metasedimentary rocks, and the Interfluve Tocantins-Araguaia Plateau with resistant sedimentary rocks.
Among the forest formations of the savanna, there is the 'cerradao' (forest savanna), that is usually associated with areas of interfluve, well-drained land and deep soils (Ribeiro and Walter, 2008).
and Lagothrix cana do not occur in the Purus-Iaco interfluve, although the distribution of these species includes much of Acre State (Iwanaga and Ferrari, 2002).
The main problems with groundwater quality in Pakistan is salinity, the concentrations of total dissolved solids (TDS) are higher, often upto greater than 3000 mg l-1, in groundwaters from the interfluve areas between the major river and canal tracts.
We have researched cryosolic soils of alas ecosystems of interfluves of Lena and Amga and interfluve of Tiung and Tiukyan rivers in left-bank part of Vilyuy River.
Corugea is located on the plat bridge of the interfluve Casimcea--Topolog.
We sampled 22 streams belonging to five drainage basins in the Madeira-Purus interfluve. Fish were caught with dip nets and a small trawl, and data were simultaneously obtained on structural characteristics of the streams and physico-chemical characteristics of the water.
This region is characterized by relatively high dissection index (37 to 55) caused by interfluve area between Drarka-Brahmni and Bansloi rivers.
My conversation with Roberto Sierra and his wife, Virginia, began just before lunch at their suburban home high on an interfluve above Lake Cayuga and Ithaca, a short drive from Cornell University where Roberto is chair of the music department and teaches composition.
Calcretes from the Late Quaternary interfluve in the Ganga Plains, India: carbonate types and isotopic systems in a monsoonal setting.