plug-in

[ pluhg-in ]

adjective

1. capable of or designed for being connected to an electrical power source by plugging in or inserting: a plug-in transistor.

   a plug-in hair dryer;

   a plug-in transistor.

noun

1. plug ( def 3 ).
2. jack ¹( def 3 ).
3. a plug-in appliance.
4. Computers. a small software program that builds additional functionality into a stand-alone computer application:

   Your web browser can’t display this video without a plug-in.

plug in

verb

1. tr, adverb to connect (an electrical appliance) with a power source by means of an electrical plug

noun

1. a device that can be connected by means of a plug
2. computing a module or piece of software that can be added to a system to provide extra functions or features, esp software that enhances the capabilities of a web browser
3. computing ( as modifier )

   plug-in memory cards

plug-in

/ plŭg′ĭn′ /

1. An accessory software or hardware package that is used in conjunction with an existing application or device to extend its capabilities or provide additional functions.

Word History and Origins

Origin of plug-in¹

First recorded in 1920–25; adjective and noun use of verb phrase plug in

Example Sentences

He’s searching for passwords written down, or will use a plug-in smart USB adaptor to simulate a computer keyboard, breaking into a network.

From BBC

Sales of plug-in hybrids, which can drive a few dozen miles on batteries alone, fell slightly.

From Los Angeles Times

He seems like a potential “plug-in and play” prospect.

From Los Angeles Times

Caleb Jud of Cincinnati said he’s considering an EV, but may end up with a plug-in hybrid — if he goes electric.

From Seattle Times

Using the same amount of electricity, a heat pump can provide three to four times more warmth than a plug-in space heater.

From Seattle Times

Related Words

• factor
• ingredient
• item
• peripheral
• piece
• segment
• unit