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spillway

[spil-wey]
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noun

a passageway through which surplus water escapes from a reservoir, lake, or the like.

Origin of spillway

First recorded in 1885–90; spill1 + way1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Related Words for spillway

inundation, deluge, gully, creek, stream, sluice, canal, estuary, aqueduct, brook, channel, flume, conduit, gutter, culvert, inlet, chute, drain, gullet, trench

Examples from the Web for spillway

Historical Examples of spillway

  • You know its location: a mile, perhaps, from Gatun Dam and the spillway.

    Raiders Invisible

    Desmond Winter Hall

  • It also serves as a spillway over which the surplus water escapes.

    Electricity for the farm

    Frederick Irving Anderson

  • It could only race and swirl along one channel, and that was the spillway of memories.

    The Tyranny of Weakness

    Charles Neville Buck

  • Here they could erect their spillway for the control of the water in the lake above.

    The Panama Canal

    Frederic Jennings Haskin

  • The first stop was at the concrete work on the spillway dam at Miraflores.

    The Panama Canal

    Frederic Jennings Haskin

British Dictionary definitions for spillway

spillway

noun

a channel that carries away surplus water, as from a damAlso called: wasteweir, spill
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
Word Origin and History for spillway
n.

1889, from spill + way.

Online Etymology Dictionary, © 2010 Douglas Harper