adapter

[uh-dap-ter]
noun
1.
a person or thing that adapts.
2.
a.
a connector for joining parts or devices having different sizes, designs, etc., enabling them to be fitted or to work together.
b.
Also called plug adapter, adapter plug. a device that connects an electrical plug to an outlet that has a different plug shape: Last time I traveled, I brought the wrong adapter.
c.
Also called AC adapter, power adapter. a device with a cord that plugs into an electrical outlet and functions as an external power supply for a small or portable electronic device, usually converting AC current to DC: I forgot to plug in the adapter, and my laptop died.
3.
an accessory to convert a machine, tool, or part to a new or modified use.
4.
Computers.
b.
an external device containing the necessary circuitry to connect to or work with another device or system: a network adapter; a wireless adapter; a video adapter.
Also, adaptor.


Origin:
1795–1805; adapt + -er1

nonadapter, nonadaptor, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
adaptor or adapter (əˈdæptə)
 
n
1.  a person or thing that adapts
2.  any device for connecting two parts, esp ones that are of different sizes or have different mating fitments
3.  a.  a plug used to connect an electrical device to a mains supply when they have different types of terminals
 b.  a device used to connect several electrical appliances to a single mains socket
 
adapter or adapter
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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American Heritage
Medical Dictionary

adapter a·dapt·er or a·dap·tor (ə-dāp'tər)
n.

  1. One that adapts.

  2. A connecting part that joins two pieces of apparatus.

  3. A converter of electric current to a desired form.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
When a suitably equipped device is placed on the pad, an adapter on its base
  makes contact with the nubs.
To plug two pairs of headphones in to an iPod, you have to buy a special
  adapter.
But road warriors might want to consider a third-party adapter.
You'll still have a wall adapter with a wire running to the dock.
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