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headwaters

American  
[hed-waw-terz, -wot-erz] / ˈhɛdˌwɔ tərz, -ˌwɒt ərz /

plural noun

  1. Sometimes headwater the upper tributaries of a river.


headwaters British  
/ ˈhɛdˌwɔːtəz /

plural noun

  1. the tributary streams of a river in the area in which it rises; headstreams

"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

Etymology

Origin of headwaters

1525–35; head + waters, plural of water

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Its life cycle includes a journey of 11,000 kilometers from Andean headwaters to coastal nursery areas.

From Science Daily Mar. 26, 2026

Beaver officer Lauren Jasper said the sites were chosen because they offered strong habitat at the headwaters, good damming potential and an existing local flood risk.

From BBC Mar. 14, 2026

Thomas River Watterson, a member of the Bishop Paiute Tribe, looks out over South Lake, in the headwaters of Bishop Creek in the Sierra Nevada.

From Los Angeles Times Oct. 18, 2025

The water that flows into the North Fork Reservoir, which serves Asheville and the towns of Black Mountain and Swannanoa, always ran clear and clean from its headwaters high in Pisgah National Forest.

From Salon Nov. 25, 2024

It subsided on the headwaters of the Ebola River and went back to its hiding place in the forest.

From "The Hot Zone" by Richard Preston

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