: 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
Advertisement Both men have been working semi-constantly since the fires started, pulling 16- to 20-hour shifts listening to multiple scanners to get people the most up to date info possible.
—
Noah Goldberg, Los Angeles Times, 10 Jan. 2025
For example, researchers are developing a wearable ultrasound scanner to detect breast cancer, and engineers are developing skinlike sensors to detect changes in tumor size.
—Aaron J. Masino, The Conversation, 10 Jan. 2025
The app pulls its wildfire information from official government reports, volunteer reporters, and 911 dispatch calls which are then vetted and monitored using radio scanners, wildlife cameras, satellites, and local announcements from law enforcement and fire services.
—Jess Weatherbed, The Verge, 9 Jan. 2025
Any information posted to Watch Duty comes from active and retired firefighters, dispatchers, and first responders, who routinely monitor radio scanners, working around the clock to bring you up-to-the-minute lifesaving information.
—Amaris Encinas, USA TODAY, 9 Jan. 2025
See all Example Sentences for scanner 
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Noah Goldberg, Los Angeles Times, 10 Jan. 2025
For example, researchers are developing a wearable ultrasound scanner to detect breast cancer, and engineers are developing skinlike sensors to detect changes in tumor size.
—Aaron J. Masino, The Conversation, 10 Jan. 2025
The app pulls its wildfire information from official government reports, volunteer reporters, and 911 dispatch calls which are then vetted and monitored using radio scanners, wildlife cameras, satellites, and local announcements from law enforcement and fire services.
—Jess Weatherbed, The Verge, 9 Jan. 2025
Any information posted to Watch Duty comes from active and retired firefighters, dispatchers, and first responders, who routinely monitor radio scanners, working around the clock to bring you up-to-the-minute lifesaving information.
—Amaris Encinas, USA TODAY, 9 Jan. 2025
See all Example Sentences for scanner
Dictionary Entries Near scanner
Cite this Entry
“Scanner.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/scanner. Accessed 18 Jan. 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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