externality
noun
ex·ter·nal·i·ty
ˌek-ˌstər-ˈna-lə-tē 
plural externalities
1
: the quality or state of being external or externalized
2
: something that is external
3
: a secondary or unintended consequence
pollution and other externalities of manufacturing
Examples of externality in a Sentence
Recent Examples on the Web
The equity implications of pecuniary externalities on an electric grid.
—
Lydia Patrick, MSNBC Newsweek, 11 Dec. 2025
Lough’s interview with Sam Bot showed the ways AI can capture at least the externalities of our personality if not more.
—Steven Zeitchik, HollywoodReporter, 20 Nov. 2025
There are no positive benefits to a broader audience, or, as economists would say, no obvious positive externalities.
—Samidh Guha, ABC News, 9 Nov. 2025
What once might have been dismissed as externalities — extreme weather, food insecurity, or regulatory reversals — now land directly on balance sheets.
—Felicia Jackson, Forbes.com, 17 Sep. 2025
See All Example Sentences for externality
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Lydia Patrick, MSNBC Newsweek, 11 Dec. 2025
Lough’s interview with Sam Bot showed the ways AI can capture at least the externalities of our personality if not more.
—Steven Zeitchik, HollywoodReporter, 20 Nov. 2025
There are no positive benefits to a broader audience, or, as economists would say, no obvious positive externalities.
—Samidh Guha, ABC News, 9 Nov. 2025
What once might have been dismissed as externalities — extreme weather, food insecurity, or regulatory reversals — now land directly on balance sheets.
—Felicia Jackson, Forbes.com, 17 Sep. 2025
See All Example Sentences for externality
Cite this Entry
“Externality.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/externality. Accessed 19 Dec. 2025.
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