plug-in
- n a printed circuit that can be inserted into expansion slots in a computer to increase the computer's capabilities
- There is a Google Earth plug-in you can download at fboweb.
- If charging a plug-in battery costs 2 cents-per-mile after midnight, and many times that during the day, drivers will likely wait before plugging in.
- Toyota Prius owners can double their mileage by ordering a kit that converts their vehicle into a plug-in hybrid.