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tailrace

American  
[teyl-reys] / ˈteɪlˌreɪs /

noun

  1. the race, flume, or channel leading away from a waterwheel or the like.

  2. Mining. the channel for conducting tailings or refuse away in water.


tailrace British  
/ ˈteɪlˌreɪs /

noun

  1. a channel that carries water away from a water wheel, turbine, etc Compare headrace

  2. mining the channel for removing tailings in water

"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 tailrace

First recorded in 1770–80; tail 1 + race 1

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:

The John Day dam is the worst, with on average 65 days each summer in which the river exceeds 68 degrees, measured in waters just below the dam, known as the tailrace.

From Seattle Times Jan. 31, 2019

It sits astride the Columbia River, which loses as much as 70 feet of elevation as it falls through the building’s turbines and emerges, almost glass-smooth, in the powerhouse’s tailrace.

From Forbes Oct. 20, 2011

That year James W. Marshall, a wheelwright, discovered gold in the tailrace of James Augustus Suiter's sawmill at Coloma.

From Time Magazine Archive

Part of it has already been acquired by the Niagara Paper Pulp Company, which is building gigantic factories, and will employ the tailrace or tunnel of the Cataract Construction Company.

From The Story of Electricity by Munro, John

While the log was running through the saw, it was my never ending delight to lean out of an opening in the side of the mill and watch the tailrace rush from under the building.

From Confessions of Boyhood by Albee, John

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