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.
Epicka Universal Travel Adapter Stay powered in any corner of the world with this compact travel adapter that works in more than 200 countries. Chaise Sanders, Travel + Leisure, 7 Oct. 2025 The air fryer system is completely portable and includes a PowerPod heating device, a 6-quart glass container, and a 4-cup glass container, container adapters, and storage lids to bake, air fry, and crisp chicken, french fries, salmon, and much more. Alicia Geigel, Southern Living, 6 Oct. 2025 The MasterFrame 600’s factory configuration uses the power supply mounting flange to close off the bottom of the expansion slot panel, so its installation kit includes an adapter plate to close off the same area whenever a builder decides to instead mount its power supply above the motherboard. Thomas Soderstrom, PC Magazine, 4 Oct. 2025 In operation, each end of a segment of DNA is attached to a molecule called an adapter that contains a helicase enzyme. IEEE Spectrum, 2 Oct. 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 9 Oct. 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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