: a passage for surplus water to run over or around an obstruction (such as a dam)
Examples of spillway in a Sentence
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Next to the lake, a spillway flows into a stream that the Department of Water Resources refers to as Blue Canyon Creek.
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Tyrone Beason, Los Angeles Times, 19 May 2024
At full capacity, wind over Lake Oroville could produce waves that crash over the crest of the emergency spillway — a normal and expected function of the design.
—Brianna Taylor, Sacramento Bee, 9 May 2024
See all Example Sentences for spillway 
Tyrone Beason, Los Angeles Times, 19 May 2024
At full capacity, wind over Lake Oroville could produce waves that crash over the crest of the emergency spillway — a normal and expected function of the design.
—Brianna Taylor, Sacramento Bee, 9 May 2024
See all Example Sentences for spillway
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“Spillway.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/spillway. Accessed 29 May. 2024.
Copy CitationKids Definition
spillway
noun
spill·way
ˈspil-ˌwā 
: a passage for extra water to run over or around a dam
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