verb (used with object), scanned, scanning.
to glance at or over or read hastily:
to scan a page.
to examine the particulars or points of minutely; scrutinize.
to peer out at or observe repeatedly or sweepingly, as a large expanse; survey.
to analyze (verse) as to its prosodic or metrical structure; read or recite (verse) so as to indicate or test the metrical form.
to read (data) for use by a computer or computerized device, especially using an optical scanner.
Television. to traverse (a surface) with a beam of light or electrons in order to reproduce or transmit a picture.
Radar. to traverse (a region) with a beam from a radar transmitter.
Medicine/Medical, Biology. to examine (a body, organ, tissue, or other biologically active material) with a scanner.
verb (used without object), scanned, scanning.
to examine the meter of verse.
(of verse) to conform to the rules of meter.
Television. to scan a surface or the like.
an act or instance of scanning; close examination.
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.
a particular image or frame in such video observation or a photograph made from it.
Medicine/Medical, Biology.

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.
the image or display so obtained.

verb scans, scanning, scanned
(transitive) to scrutinize minutely
(transitive) to glance over quickly
(transitive) (prosody) to read or analyse (verse) according to the rules of metre and versification
(intransitive) (prosody) to conform to the rules of metre and versification
(transitive) (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
(transitive) to examine data stored on (magnetic tape, etc), usually in order to retrieve information
to examine or search (a prescribed region) by systematically varying the direction of a radar or sonar beam
(physics) to examine or produce or be examined or produced by a continuous charge of some variable: to scan a spectrum
(med) to obtain an image of (a part of the body) by means of a scanner
the act or an instance of scanning

the examination of a part of the body by means of a scanner: a brain scan, ultrasound scan
the image produced by a scanner

scan (skān)
v. scanned, scan·ning, scans

To move a finely focused beam of light or electrons in a systematic pattern over a surface in order to reproduce or sense and subsequently transmit an image.

To examine a body or a body part with a CAT scanner or similar scanning apparatus.

To search stored computer data automatically for specific data.


The act or an instance of scanning.

Examination of a body or body part by a CAT scanner or similar scanning apparatus.

A picture or an image that is produced by this means.

scan’na·ble adj.
scan’ner n.


Read Also:

  • Scanner

    noun 1. a person or thing that scans. 2. optical scanner. See under optical scanning. 3. Photography. any device for exposing an image on film, a sensitized plate, etc., by tracing light along a series of many closely spaced parallel lines. 4. (in aerial photography) a device for estimating the ratio of aircraft speed to […]

  • Scanning-disk

    noun, Television. 1. (in mechanical scanning) a disk with a line of holes spiraling in from its edge, rotated in front of a surface so as to expose a small segment as each hole passes before it for transmitting or reproducing a picture.

  • Scanning-electron-microscope

    noun 1. a device in which the specimen is examined point by point directly in a moving electron beam, and electrons reflected by the specimen are used to form a magnified, three-dimensional image on a television screen. Abbreviation: SEM. scanning electron microscope noun 1. a type of electron microscope that produces a three-dimensional image scanning […]

  • Scanning force microscope

    scanning force microscope See atomic force microscope.

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