externality
🇺🇸
/ˌekstɜːrˈnæləti/
🇬🇧
/ˌekstɜːˈnæləti/
An effect or result that is not included in the cost of a product or service.
The pollution caused by a factory is an example of a negative externality, as it affects the environment and people's health without being reflected in the price of the factory's products.
Something that exists outside of a person or thing.
The artist's externality to the natural world was evident in his work, as he seemed to be disconnected from the environment around him.