: 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
Cite this Entry
“Scanner.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/scanner. Accessed 14 Oct. 2026.
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