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18-letter words containing c, o, v, e

  • positively charged — having a positive charge
  • progressive coding — (graphics, file format, algorithm)   (Or "interlacing") An aspect of a graphics storage format or transmission algorithm that treats bitmap image data non-sequentially in such a way that later data adds progressively greater resolution to an already full-size image. This contrasts with sequential coding. Progressive coding is useful when an image is being sent across a slow communications channel, such as the Internet, as the low-resolution image may be sufficient to allow the user to decide not to wait for the rest of the file to be received. In an interlaced GIF89 image, the pixels in a row are stored sequentially but the rows are stored in interlaced order, e.g. 0, 8, 4, 12, 2, 6, 8, 10, 14, 1, 3, 5, 7, 9, 11, 13, 15. Each vertical scan adds rows in the middle of the gaps left by the previous one. Interlacing is also supported by other formats. JPEG supports a functionally similar concept known as Progressive JPEG. [How does the algorithm differ?] See also progressive/sequential coding.
  • protective colloid — a lyophilic colloid added to a lyophobic sol to lessen its sensitivity to the precipitating effect of an electrolyte.
  • protective custody — detention of a person by the police solely as protection against a possible attack or reprisal by someone.
  • protocol converter — (networking)   A device or program to translate between different protocols which serve similar functions (e.g. TCP and TP4). Some call this a "gateway", though others use that term for other kinds of internetworking device.
  • provascular tissue — procambium.
  • provincetown print — a print made from a woodblock incised with grooves that serve to separate the colors being used and to leave white lines highlighting the design.
  • provision merchant — a person or company in the business of retailing food and other provisions
  • pseudo-competitive — of, pertaining to, involving, or decided by competition: competitive sports; a competitive examination.
  • psychogalvanometer — a type of galvanometer for detecting and measuring psychogalvanic currents.
  • public convenience — a rest room, especially at a large public place, as at a railroad station.
  • quality of service — (communications, networking)   (QoS) The performance properties of a network service, possibly including throughput, transit delay, priority. Some protocols allow packets or streams to include QoS requirements.
  • rabbit-foot clover — a plant, Trifolium arvense, having trifoliate leaves with narrow leaflets and fuzzy, cylindrical, grayish-pink flower heads.
  • racially motivated — motivated by (the hate or prejudice of) someone's race
  • radioactive dating — any method of determining the age of earth materials or objects of organic origin based on measurement of either short-lived radioactive elements or the amount of a long-lived radioactive element plus its decay product.
  • radioactive series — a succession of elements initiated in the radioactive decay of a parent, as thorium or uranium, each of which decays into the next until a stable element, usually lead, is produced.
  • raffinate recovery — Raffinate recovery is the use of a substance which is left after a process is complete and the desired substances have been removed.
  • reactive component — the component in an alternating-current circuit that does not contribute power because it is 90° out of phase with the voltage or current.
  • recovery operation — the process of locating and retrieving bodies, esp following an explosion or natural disaster
  • recursive function — a function defined in terms of the repeated application of a number of simpler functions to their own values, by specifying a base clause and a recursion formula
  • reduction division — the first division of meiosis in which the number of chromosomes is reduced to half the original number.
  • reverse psychology — (in nontechnical use) a method of getting another person to do what one wants by pretending not to want it or to want something else or something more.
  • revolution counter — a device for counting or recording the number of revolutions made by a rotating shaft, as of a motor or engine.
  • school-leaving age — the minimum age that children are legally allowed to leave school - in Britain and the United States, this is 16
  • second triumvirate — the coalition and joint rule of the Roman Empire by Antony, Lepidus, and Octavian, begun in 43 bc
  • secondary deviance — deviant behavior that results from being publicly labeled as deviant and treated as an outsider.
  • secondary recovery — extraction of oil or natural gas under artificially induced pressure after the natural flow has ceased.
  • selective abortion — the aborting of particular embryos for medical or social reasons
  • silvery cinquefoil — any of several plants belonging to the genus Potentilla, of the rose family, having yellow, red, or white five-petaled flowers, as P. reptans (creeping cinquefoil) of the Old World, or P. argentea (silvery cinquefoil) of North America.
  • slobodan milosevic — Slobodan [sloh-buh-dain] /ˈsloʊ bəˌdɛən/ (Show IPA), 1941–2006, Yugoslav and Serbian politician: president of Serbia 1989–97, president of the Federal Republic of Yugoslavia 1997–2000, accused of war crimes 2001.
  • social environment — the environment developed by humans as contrasted with the natural environment; society as a whole, especially in its relation to the individual.
  • solvent extraction — Solvent extraction is the separation of a particular substance from a mixture by dissolving that substance in a solvent that will dissolve it, but which will not dissolve any other substance in the mixture.
  • specific viscosity — a measure of the resistance to flow of a fluid, expressed as the ratio of the absolute viscosity of the fluid to that of a reference fluid (usually water in the case of liquids)
  • split-level cooker — a cooker that is designed with a separate oven and hob so that they can be fitted wherever is most convenient in the kitchen
  • stick-to-itiveness — persistence, tenacity
  • store launch event — A store launch event is a special event, which publicizes the opening of a new store and at which discounts and free samples may be offered.
  • super royal octavo — a book size, 63⁄4 by 101⁄4 inches
  • superior vena cava — See under vena cava.
  • surveyor's compass — an instrument used by surveyors for measuring azimuths.
  • synthetic division — a simplified procedure for dividing a polynomial by a linear polynomial.
  • teacher evaluation — the process of vetting teachers to maintain teaching standards
  • teleobjective lens — telephoto lens.
  • telephone receiver — a device, as in a telephone, that converts changes in an electric current into sound.
  • television cabinet — a cabinet on which a television set is placed or in which it is encased
  • television company — a company that broadcasts programmes by television
  • television licence — a certificate giving official permission to own a television set
  • tender loving care — considerate and kindly care, as of someone who is ill, upset, etc
  • to scrape a living — If you say that someone scrapes a living or scratches a living, you mean that they manage to earn enough to live on, but it is very difficult. In American English, you say they scrape out a living or scratch out a living.
  • too clever by half — If someone is too clever by half, they are very clever and they show their cleverness in a way that annoys other people.
  • townsend avalanche — avalanche (def 3).
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