The terms scan and scanning have several meanings:

Wiktionary has related dictionary definitions, such as:

scan

• The term scan has the following meanings:
  1. To examine sequentially, part by part. *
  2. In data processing, image scanning is to optically analyze a two or three dimensional image and digitally encode it (digitize it) for storage in a computer file.
  3. The resulting computer file from image scanning (commonly used in the anime and manga art communities).
  4. Also in data processing, to examine successively every character or bit in a digital computer file as part of a data retrieval function. *
  5. In radar, one complete rotation of the interrogating antenna. *
  6. In SONAR, to search 360° or a specific search sector by the use of phased array of transducers. *
  7. To sweep, i.e., rotate, a beam about a point or about an axis. *
  8. To analyze writing and verse regarding rhythmic and especially metrical structure.
  9. The name of the medical procedure examining a baby in the womb Ultrasound.
  10. To subject a document to the process of OCR including optical recognition of printed text or printed sheet music.
  11. SCAN is an acronym for Strategic Creative Analysis.

• The term scanning has the following meanings:
  1. In television, facsimile, and picture transmission, the process of sequentially encoding the luminosity and optionally the color of a picture or scene, line by line into an electronic signal. It also refers to remotely reconstructing the picture or scene on a display device.
  2. In telecommunications, the process of rapidly tuning a radio receiver through a predetermined range of frequencies to select an active radio broadcast. Scanning may be performed manually or automatically.
  3. In radar and radio direction-finding, the slewing of an antenna or radiation pattern for the purpose of probing in a different direction. In radar, scanning may be mechanical, using a rotary microwave joint to feed the antenna, or electronic, using a phased array of radiators, the radiated pattern (beam) of which depends on the relative phases of the signals fed to the individual radiators. In civilian air traffic control radar, scanning usually implies continuous rotation of the antenna or beam about a vertical axis. In military radars, scanning may occur about other than a vertical axis, and may not encompass a full 360°.
  4. In teaching reading, the technique for quickly finding specific information in a text while ignoring its broader meaning.
• In the semiconductor electronics testing industry, the term scan has the following meaning:
  • To test the logic used in an integrated circuit in a non-functional method by using a special test mode. This mode generally changes the configuration of the device being tested to look more similar to a large shift register. Logical blocks are then tested by loading and unloading this register. (See for instance JTAG Boundary Scan.)
• Scanning is a term for the medical technique for body imaging.
• Scanning is the term for the lowest-level work of a software compiler, putting together the individual characters of the text of a computer program to form lexemes.

See also: scanner Wikipedia does not have an article with this exact name. ... Wiktionary is a Wikimedia Foundation project intended to be a free wiki dictionary (hence: Wiktionary) (including thesaurus and lexicon) in every language. ... Data processing is any computer process that converts data into information. ... Image scanning is the action or process of producing images from text documents, photographic film, photographic paper or other physical objects. ... Digitizing, or digitization, is the process of turning an analog signal into a digital representation of that signal. ... A computer file is a collection of information that is stored in a computer system and can be identified and referenced in its entirety by a unique name. ... Atom, star of the long-running science fiction series Mighty Atom (also known as Astro Boy to Western audiences). ... For other uses, see Manga (disambiguation). ... This article is about the unit of information. ... This long range radar antenna, known as ALTAIR, is used to detect and track space objects in conjunction with ABM testing at the Ronald Reagan Test Site on the Kwajalein atoll[1]. Radar is a system that uses radio waves to detect, determine the distance of, and map, objects such... A yagi antenna Most simply, an antenna is an electronic component designed to send or receive radio waves. ... The F70 type frigates (here, La Motte-Picquet) are fitted with VDS (Variable Depth Sonar) type DUBV43 or DUBV43C tugged sonars SONAR (SOund Navigation And Ranging) â€” or sonar â€” (British ASDIC) is a technique that uses sound propagation under water to navigate or to detect other vessels. ... A giant phased-array radar in Alaska In telecommunication, a phased array is a group of antennas in which the relative phases of the respective signals feeding the antennas are varied in such a way that the effective radiation pattern of the array is reinforced in a desired direction and... Beam may refer to: Look up beam in Wiktionary, the free dictionary. ... See also Creative writing. ... Verse is a writing that uses meter as its primary organisational mode, as opposed to prose, which uses grammatical and discoursal units like sentences and paragraphs. ... // Rhythm (Greek ρυθμός = tempo) is the variation of the duration of sounds or other events over time. ... Meter (British English spelling: metre) describes the linguistic sound patterns of a verse. ... A baby in its mothers womb, viewed in a sonogram Ultrasound is sound with a frequency greater than the upper limit of human hearing, approximately 20 kiloHertz/20,000 Hertz. ... Optical character recognition, usually abbreviated to OCR, involves computer software designed to translate images of typewritten text (usually captured by a scanner) into machine-editable text, or to translate pictures of characters into a standard encoding scheme representing them in (ASCII or Unicode). ... This page is a candidate to be moved to Wiktionary. ... In communications, transmission is the act of transmitting electrical messages (and the associated phenonomena of radiant energy that pass through media). ... Luminosity has different meanings in several different fields of science. ... BlackBerry 7100t Telecommunication refers to the communication of information at a distance. ... In music, tuning is the process of producing or preparing to produce a certain pitch in relation to another, usually at the unison but often at some other interval. ... This long range radar antenna, known as ALTAIR, is used to detect and track space objects in conjunction with ABM testing at the Ronald Reagan Test Site on the Kwajalein atoll[1]. Radar is a system that uses radio waves to detect, determine the distance of, and map, objects such... A radio direction finder, or RDF, is a device for finding the direction to a radio source. ... To turn something around an axis usually the z axis eg a radar scanning 360 degrees by slewing around the z axis. ... A yagi antenna Most simply, an antenna is an electronic component designed to send or receive radio waves. ... In telecommunication, the term radiation pattern has the following meanings: 1. ... Microwave image of 3C353 galaxy at 8. ... The word feed has a number of uses: Feeding is supplying food. ... A giant phased-array radar in Alaska In telecommunication, a phased array is a group of antennas in which the relative phases of the respective signals feeding the antennas are varied in such a way that the effective radiation pattern of the array is reinforced in a desired direction and... Beam may refer to: Look up beam in Wiktionary, the free dictionary. ... JTAG, an initialism for Joint Test Action Group, is the usual name used for the IEEE 1149. ... CT apparatus in a hospital Computed axial tomography (CAT), computer-assisted tomography, computed tomography, CT, or body section roentgenography is the process of using digital processing to generate a three-dimensional image of the internals of an object from a large series of two-dimensional X-ray images taken around... A diagram of the operation of a typical multi-language compiler. ... The terms computer program, software program, applications program, system software, or just program are used to refer to either an executable program by both lay people and computer programmers or the collection of source code from which an executable program is created (eg, compiled). ... Definition A lexeme is an abstract unit of morphological analysis in linguistics, that roughly corresponds to a set of words that are the same in basic meaning. ... The term scanner has several meanings: In radio, a scanner is a device for searching for and receiving radio broadcasts. ...

Reference

• Definitions identified with a * sign are from Federal Standard 1037C in support of MIL-STD-188