plug-in: Meaning and Definition of
plug-in
Pronunciation: (plug'in"), [key]
— adj.
- 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.
- plug (def. 3).
- jack (def. 3).
- a plug-in appliance.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.