Definition of "plug-in" []

• Designed to be plugged in to an electric circuit: a plug-in game. (adjective)
• Computer Science See add-in. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The terms PHEV20 and PHEV60 refer to plug-in hybrids with electric drive ranges of 20 km and 60 km, respectively 12.5 and 37.5 miles."
• "The F3DM can be described as a plug-in hybrid, but dual mode - that's what the DM stands for - is more accurate."
• "According to Rupert Baines, marketing head of Picochip Ltd., a more realistic application for a tiny plug-in cell is to make it work with cable boxes or Internet routers, to convert them into femtocells."