externality

play
noun ex·ter·nal·i·ty \ˌek-ˌstər-ˈna-lə-tē\

Definition of externality

plural

externalities

  1. 1 :  the quality or state of being external or externalized

  2. 2 :  something that is external

  3. 3 :  a secondary or unintended consequence pollution and other externalities of manufacturing

Recent Examples of externality from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'externality'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of externality

1673

Learn More about externality


Seen and Heard

What made you want to look up externality? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!