scan
1 Americanverb (used with object)
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to glance at or over or read hastily.
to scan a page.
- Synonyms:
- skim
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to examine the particulars or points of minutely; scrutinize.
- Synonyms:
- inspect, investigate, study
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to peer out at or observe repeatedly or sweepingly, as a large expanse; survey.
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to analyze (verse) as to its prosodic or metrical structure; read or recite (verse) so as to indicate or test the metrical form.
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to read (data) for use by a computer or computerized device, especially using an optical scanner.
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Television. to traverse (a surface) with a beam of light or electrons in order to reproduce or transmit a picture.
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Radar. to traverse (a region) with a beam from a radar transmitter.
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Medicine/Medical, Biology. to examine (a body, organ, tissue, or other biologically active material) with a scanner.
verb (used without object)
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to examine the meter of verse.
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(of verse) to conform to the rules of meter.
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Television. to scan a surface or the like.
noun
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an act or instance of scanning; close examination.
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a visual examination by means of a television camera, as for the purpose of making visible or relaying pictures from a remote place.
a satellite scan of the dark side of the moon; video scans of property listings available to customers.
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a particular image or frame in such video observation or a photograph made from it.
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Medicine/Medical, Biology.
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examination of the body or an organ or part, or a biologically active material, by means of a technique such as computed axial tomography, nuclear magnetic resonance, ultrasonography, or scintigraphy.
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the image or display so obtained.
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abbreviation
verb
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(tr) to scrutinize minutely
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(tr) to glance over quickly
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(tr) prosody to read or analyse (verse) according to the rules of metre and versification
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(intr) prosody to conform to the rules of metre and versification
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(tr) electronics to move a beam of light, electrons, etc, in a predetermined pattern over (a surface or region) to obtain information, esp either to sense and transmit or to reproduce a television image
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(tr) to examine data stored on (magnetic tape, etc), usually in order to retrieve information
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to examine or search (a prescribed region) by systematically varying the direction of a radar or sonar beam
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physics to examine or produce or be examined or produced by a continuous charge of some variable
to scan a spectrum
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med to obtain an image of (a part of the body) by means of a scanner
noun
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the act or an instance of scanning
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med
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the examination of a part of the body by means of a scanner
a brain scan
ultrasound scan
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the image produced by a scanner
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Other Word Forms
- scannable adjective
- self-scanned adjective
- unscannable adjective
- unscanned adjective
Etymology
Origin of scan
1350–1400; Middle English scannen, variant of *scanden < Late Latin scandere to scan verse, Latin: to climb ( ascend )
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The standards seem to recommend age verification through “quizzes and tasks” instead of direct proof through face scans or IDs.
From Salon
High overhead, military aircraft bristling with antennas and probes scan surrounding waters.
Dad has stiffened in his seat, his eyes scanning the road ahead.
From Literature
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To examine those features, the team used CT scanning technology, assembling a stack of X ray images into a detailed three dimensional model.
From Science Daily
Ford has studied footballers' ability to scan the pitch for possibilities.
From BBC
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.