Meaning of plug-in

plug-in

Pronunciation: (plug'in"), [key]
— adj.
  1. capable of or designed for being connected to an electrical power source by plugging in or inserting: a plug-in hair dryer; a plug-in transistor.
—n.
  1. plug (def. 3).
  2. jack (def. 3).
  3. a plug-in appliance.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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