External may refer to: *

Externality In economics, an externality is an Indirect costs, indirect cost (external cost) or indirect benefit (external benefit) to an uninvolved third party that arises as an effect of another party's (or parties') activity. Externalities can be conside ...

, in economics, the cost or benefit that affects a party who did not choose to incur that cost or benefit *

Externals The Externals are a group of fictional characters appearing in American comic books published by Marvel Comics. Considered a rare subspecies of mutants, most of them were X-Men antagonists. The original, unused name for the group was to be Th ...

, a fictional group of X-Men antagonists

See also