Externality (noun) Definition, Meaning & Examples

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noun, plural ex·ter·nal·i·ties.
  1. the state or quality of being external to or outside someone or something; the fact of being outer, outward, or on the surface: A child just learning to speak already has a sense of the externality of the world.
  2. something external; an outward feature, or all outward features considered together: One can be too preoccupied with the externalities of religion.
  3. excessive attention to external or outward features; superficiality: The article explores the externality of identity in a world of media-constructed self-image.
  4. a side effect of some process or activity, especially a negative effect of an economic activity that is not accounted for in the price of what is produced: Externalities such as air pollution are sometimes eliminated through government regulation.They argue that there is an externality from breeding new pets, as the cute babies crowd out older pets.
noun plural -ties
  1. the state or condition of being external
  2. something external
  3. the quality of existing independently of a perceiving mind
  4. an economic effect that results from an economic choice but is not reflected in market prices
Externality (noun) Definition, Meaning & Examples

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