outfall

noun

out·​fall ˈau̇t-ˌfȯl How to pronounce outfall (audio)
: the outlet of a body of water (such as a river or lake)
especially : the mouth of a drain or sewer

Examples of outfall in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
However, due to habitat loss, over 60% of Florida’s manatees now depend on industrial outfalls for warmth. Elizabeth Neville, The Orlando Sentinel, 22 Mar. 2026 Future rainstorms could also continue to wash metals into Will Rogers Beach and the Rustic Creek outfall, both of which are near the Palisades burn scar, CLEAN Waters warned. Los Angeles Times, 20 Mar. 2026 Escondido relies on an outfall pipe that transports the city’s runoff to the ocean via Escondido creek. Lucas Robinson, San Diego Union-Tribune, 15 Mar. 2026 Instead, a network of pipes was added under inland streets to temporarily detain runoff with massive underground tidal gates that could stop floodwaters from surging up drainage outfalls, blowing out manhole covers and geysering fountains of river water. James S. Russell, Bloomberg, 13 Mar. 2026 See All Example Sentences for outfall

Word History

First Known Use

1629, in the meaning defined above

Time Traveler
The first known use of outfall was in 1629

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Cite this Entry

“Outfall.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/outfall. Accessed 22 Apr. 2026.

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