Definition of EXTERNALITY

externality

Plural: externalities

Noun

  • the quality or state of being outside or directed toward or relating to the outside or exterior
  • The state of being external or externalized.
  • A thing that is external relative to something else.
  • An impact, positive or negative, on any party not involved in a given economic transaction or act.

Examples

  • "Waste is a negative externality arising from consumption."

Origin / Etymology

From external + -ity. In the economic sense coined by British economist Alfred Marshall in 1890.

Synonyms

outwardness

Antonyms

inwardness

Scrabble Score: 21

externality: valid Scrabble (US) TWL word
externality: valid Scrabble Word in Merriam-Webster MW Dictionary
externality: valid Scrabble Word in International Collins CSW Dictionary

Words With Friends Score: 22

externality is a valid Words With Friends word