: 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 ct scanner
Examples of scanner in a Sentence
a price scanner at a supermarket
Recent Examples on the Web
According to Miyadera, the most difficult part of the project was designing a scanner that could function in a high-radiation environment.
—
Aman Tripathi, Interesting Engineering, 15 Oct. 2025
Spencer Platt | Getty Images More than 1 million children around the world have used Lego’s toy MRI scanner sets in preparation for their medical procedures, the toymaker announced today.
—Alex Harring, CNBC, 13 Oct. 2025
According to the police scanner, police were responding to a call from a tow truck driver who told cops two men were shooting at each other with rifles.
—David J. Neal, Miami Herald, 9 Oct. 2025
The scan follows an injection of a radioactive form of glucose that provides a signal picked up by the scanner.
—Hannah Millington, MSNBC Newsweek, 7 Oct. 2025
See All Example Sentences for scanner
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Aman Tripathi, Interesting Engineering, 15 Oct. 2025
Spencer Platt | Getty Images More than 1 million children around the world have used Lego’s toy MRI scanner sets in preparation for their medical procedures, the toymaker announced today.
—Alex Harring, CNBC, 13 Oct. 2025
According to the police scanner, police were responding to a call from a tow truck driver who told cops two men were shooting at each other with rifles.
—David J. Neal, Miami Herald, 9 Oct. 2025
The scan follows an injection of a radioactive form of glucose that provides a signal picked up by the scanner.
—Hannah Millington, MSNBC Newsweek, 7 Oct. 2025
See All Example Sentences for scanner
Cite this Entry
“Scanner.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/scanner. Accessed 21 Oct. 2025.
Copy CitationKids Definition
scanner
noun
scan·ner
ˈskan-ər 
: 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
scanner
noun
scan·ner
ˈskan-ər
: a device (as a CT scanner) for making scans of a living body
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