A man scans MRI brain scans.
- The definition of a scan is an act of looking at carefully or quickly or of transmitting an image or text to a computer.
An example of a scan is a quick glance through a magazine.
- Scan is defined as to closely and quickly look at something, to use an electronic device to copy an image or text into a digital file, or to analyze verse into metrical verse.
- An example of to scan is to thoroughly search a document for errors.
- An example of to scan is to copy pictures onto a computer.
- An example of to scan is to put a poem into metrical verse.
transitive verbscanned, scanning
- to analyze (verse) in terms of its rhythmic components, as by counting accents and syllables and marking the metrical feet
- to look at closely or in a broad, searching way; scrutinize
- ☆ to glance at quickly; consider hastily
- to examine, identify, or interpret (printed characters, video images, bar codes, etc.): said of an electronic device
- Comput. to examine (items in a file) in sequence in order to find those that meet a particular criterion
- Med. to examine the structure or condition of an internal body organ with ultrasound, tomography, etc.
- Electronics to traverse (a region) with a succession of transmitted radar beams, usually radiated in a systematic pattern
- TV to traverse (a surface) rapidly and point by point with a beam of light or electrons in transmitting or reproducing the lights and shades of an image
Origin of scanMiddle English scannen ; from Classical Latin scandere, to climb, mount (in Late Latin to scan): see descend
- to scan verse
- to conform to metrical principles: said of poetry
- the act or an instance of scanning
- scope of vision
verbscanned scanned, scan·ning, scans
- a. To look at carefully or thoroughly, especially in search of something; examine: The sailor scanned the horizon for signs of land.b. To look over quickly or read hastily: I scanned the newspaper while eating breakfast.
- Computers To search (stored data) automatically for specific data.
- a. To direct 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.b. To direct a radar beam in a systematic pattern across (a sector of sky) in search of a target.
- To encode (text, for example) in digital format by means of an optical scanner.
- a. Medicine To direct x-rays or other energy at (a body or body part) in order to produce an image, as with a CT scanner.b. To pass (luggage, for example) through a detector at a security checkpoint in order to detect weapons or banned materials.
- To analyze (verse) into metrical patterns.
- To analyze verse into metrical patterns.
- To conform to a metrical pattern: Does this line scan?
- The act or an instance of scanning: my scan of the files.
- Medicine a. The action or process of scanning a body or body part.b. An image produced by scanning.
Origin of scanMiddle English scanden, scannen, to scan a verse, from Latin scandere, to climb, scan a verse; see skand- in Indo-European roots.
(third-person singular simple present scans, present participle scanning, simple past and past participle scanned)
- An instance of scanning.
- The operators vacated the room during the scan.
- The result or output of a scanning process.
- The doctors looked at the scans and made a diagnosis.
From Middle English scannen, for *scanden < Old French escandir (“to climb, scan"), from Latin scandÅ (“I climb").
scan - Computer Definition
(1) To make an electronic comparison of a signal, pixel or data structure as described in the following definitions.
(2) In optical technologies, to read a printed form a line at a time in order to convert images into bitmapped representations or convert characters into text. See OCR.
(3) In video, to move across a picture frame a line at a time, either to detect the image in an analog or digital camera, or to refresh a CRT display.
(4) To search a data file sequentially for specific content.
(5) To search an executable file for a particular pattern. See antivirus program.
(6) To sequentially search for peripheral devices attached to the computer.