adapter

noun

adapt·​er ə-ˈdap-tər How to pronounce adapter (audio)
a-
variants or less commonly adaptor
1
: one that adapts
2
a
: a device for connecting two parts (as of different diameters) of an apparatus
b
: an attachment for adapting apparatus for uses not originally intended

Examples of adapter in a Sentence

adapters for the food mixer include a meat grinder and an ice cream maker
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The rocket's conical stage adapter, which connects the SLS core booster to the launch vehicle's upper stages, was added to the stack on Saturday (April 12), according to NASA. Josh Dinner, Space.com, 16 Apr. 2025 The offer is also available on various iPhone and iPad cases, cables, chargers, adapters, and Apple Watch bands. James Peckham, PC Magazine, 16 Apr. 2025 Ford had been offering a free NACS adapter for Tesla chargers. Brooke Crothers, Forbes.com, 12 Apr. 2025 It’s equipped with two USB slots, two U.S. outlets, and six adapters that are compatible in Asia, Europe, Australia, and more. Kristin Braswell, Travel + Leisure, 28 Mar. 2025 See All Example Sentences for adapter

Word History

Etymology

adapt + -er entry 2

First Known Use

1753, in the meaning defined at sense 2

Time Traveler
The first known use of adapter was in 1753

Browse Nearby Words

Cite this Entry

“Adapter.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/adapter. Accessed 23 Apr. 2025.

Kids Definition

adapter

noun
adapt·​er
variants also adaptor
1
: someone or something that adapts
2
a
: a device for connecting two parts (as of different diameters) of a usually larger device
b
: an attachment for adapting a device for uses not originally intended

Medical Definition

adapter

noun
adapt·​er
variants also adaptor
1
: one that adapts
2
a
: a device for connecting two parts (as of different diameters) of an apparatus
b
: an attachment for adapting apparatus for uses not originally intended

More from Merriam-Webster on adapter

Last Updated: - Updated example sentences
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