externality

noun

ex·​ter·​nal·​i·​ty ˌek-ˌstər-ˈna-lə-tē How to pronounce externality (audio)
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
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.
By mandating human oversight, California’s law ensures that decisions affecting patients' lives incorporate additional externalities, context and nuance—elements that no algorithm can fully replicate regardless of its sophistication. Chris Bowen, Forbes, 26 Feb. 2025 The fact that carbon prices could eventually account for the negative externalities of carbon dioxide emissions provides another strong incentive for oil-producing states to take climate change seriously and plan for the coming energy transition. Marwa Daoudy, Foreign Affairs, 22 Feb. 2022 Modern economies blend capitalism with socialism to address challenges like inequality, market failures and negative externalities, like when a business harms the environment. H. Sami Karaca, The Conversation, 13 Jan. 2025 However, addressing negative externalities is not a one-size-fits-all solution. Martin Jarzebowski, Forbes, 9 Jan. 2025 See All Example Sentences for externality

Word History

First Known Use

1673, in the meaning defined at sense 1

Time Traveler
The first known use of externality was in 1673

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Cite this Entry

“Externality.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/externality. Accessed 5 Mar. 2025.

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