: one that scans: such as
a
: a device for sensing recorded data (as in a bar code)
a supermarket scanner
b
: a radio receiver that sequentially scans a range of frequencies for a signal
c
: a device that scans an image (such as a photograph) or document (such as a page of text) especially for use or storage on a computer
d
: a medical device for scanning a living body to collect diagnostic information see also ct scanner

Examples of scanner in a Sentence

a price scanner at a supermarket
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 high resolution scan creates a virtual 3D model of the site with an accuracy range of less than 2 centimeters, and involves walking around the archaeological site with an instrument called a LiDAR scanner. Margherita Bassi, Popular Science, 3 Sep. 2026 Transportation Security Administration officers screen those while the flyer spreads their arms out mannequin-style inside a body scanner. Kathleen Wong, USA Today, 3 Sep. 2026 At the lululab booth, visitors put their faces into a 3D scanner and let an AI grade them. Christopher Elliott, Forbes.com, 29 Aug. 2026 In one case, the group infected the Trivy vulnerability scanner. Dan Goodin, ArsTechnica, 28 Aug. 2026 See All Example Sentences for scanner

Word History

First Known Use

1556, in the meaning defined above

Time Traveler
The first known use of scanner was in 1556

Browse Nearby Words

Cite this Entry

“Scanner.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/scanner. Accessed 6 Sep. 2026.

Kids Definition

: one that scans: as
a
: a device that senses recorded information
b
: a radio receiver that scans a range of frequencies for a signal
c
: a device that scans an image or document especially for use or storage on a computer
d
: a device for scanning a living body to collect medical information

Medical Definition

: a device (as a CT scanner) for making scans of a living body
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!