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19-letter words containing a, b, c, t

  • detective constable — a police officer who investigates crime and who is of the lowest rank
  • differential backup — (operating system)   A kind of backup that copies all files that have changed since the last full backup. Each differential backup will include all files in previous differential backups since the full backup so to restore a version of a file, you only need to search the full backup and the relevant differential backup. Some systems support differential backup by associating an "Archive" flag with each file and setting this flag whenever the file is modified to indicate that it should be included in the next backup. A differential backup does not change this flag, whereas an incremental backup resets it.
  • dobsonian telescope — a relatively inexpensive Newtonian telescope, suitable for visual but not photographic use, in which the tube assembly slips freely in the lower base.
  • dutchman's-breeches — a plant, Dicentra cucullaria, of the fumitory family, having long clusters of pale-yellow, two-spurred flowers.
  • effervescent tablet — Effervescent tablets break down quickly when they are dropped into water or another liquid.
  • electro-shock baton — a baton used as a weapon to pass an electric current through part of the body
  • electronic keyboard — a typewriter keyboard used to operate an electronic device such as a computer, word processor, etc
  • emotional blackmail — a way of persuading someone to do something they do not want to do by making them feel guilty about it
  • enabling technology — technology that enables the user to perform a task or to improve his or her overall performance: e.g. the internet
  • essence of bergamot — a fragrant essential oil from the fruit rind of this plant, used in perfumery and some teas (including Earl Grey)
  • exhibitionistically — In an exhibitionistic manner.
  • foundation subjects — the subjects studied as part of the National Curriculum, including the compulsory core subjects
  • functional database — (database, language)   A database which uses a functional language as its query language. Databases would seem to be an inappropriate application for functional languages since, a purely functional language would have to return a new copy of the entire database every time (part of) it was updated. To be practically scalable, the update mechanism must clearly be destructive rather than functional; however it is quite feasible for the query language to be purely functional so long as the database is considered as an argument. One approach to the update problem would use a monad to encapsulate database access and ensure it was single threaded. Alternative approaches have been suggested by Trinder, who suggests non-destructive updating with shared data structures, and Sutton who uses a variant of a Phil Wadler's linear type system. There are two main classes of functional database languages. The first is based upon Backus' FP language, of which FQL is probably the best known example. Adaplan is a more recent language which falls into this category. More recently, people have been working on languages which are syntactically very similar to modern functional programming languages, but which also provide all of the features of a database language, e.g. bulk data structures which can be incrementally updated, type systems which can be incrementally updated, and all data persisting in a database. Examples are PFL [Poulovassilis&Small, VLDB-91], and Machiavelli [Ohori et al, ACM SIGMOD Conference, 1998].
  • gigabits per second — (unit)   (Gbps) A unit of information transfer rate equal to one billion bits per second. Note that, while a gigabit is defined as a power of two (2^30 bits), a gigabit per second is defined as a power of ten (10^9 bits per second, which is slightly less) than 2^30).
  • goldbach conjecture — an unproved theorem that every even integer greater than 2 can be written as the sum of two prime numbers.
  • great crested grebe — a large Old World grebe, Podiceps cristatus, having black, earlike tufts of feathers projecting backward from the top of the head.
  • handlebar moustache — a man's moustache having long, curved ends that resemble the handlebars of a bicycle.
  • hang in the balance — to fasten or attach (a thing) so that it is supported only from above or at a point near its own top; suspend.
  • have a bone to pick — to have grounds for a quarrel
  • heptachlorobiphenyl — (organic compound) Either of twenty-four isomers of the polychlorinated biphenyl containing seven chlorine atoms.
  • hydrostatic balance — a balance for finding the weight of an object submerged in water in order to determine the upthrust on it and thus determine its relative density
  • hydroxybutyric acid — ketone body.
  • hyperbolic cosecant — a hyperbolic function that is the reciprocal of hyperbolic sine
  • in the catbird seat — If you say that someone is in the catbird seat, you think that their situation is very good.
  • incomplete abortion — a miscarriage in which some fetal or placental tissue remains in the uterus.
  • interchangeableness — Quality of being interchangeable.
  • internal-combustion — of or relating to an internal-combustion engine.
  • intervertebral disc — any of the cartilaginous discs between individual vertebrae, acting as shock absorbers
  • job creation scheme — a governmental scheme to increase the number of jobs in an area, organization, etc
  • kansas-nebraska act — the act of Congress in 1854 annulling the Missouri Compromise, providing for the organization of the territories of Kansas and Nebraska, and permitting these territories self-determination on the question of slavery.
  • kellogg-briand pact — a treaty renouncing war as an instrument of national policy and urging peaceful means for the settlement of international disputes, originally signed in 1928 by 15 nations, later joined by 49 others.
  • label switched path — (networking)   (LSP) The specific path through a network that a datagram follows, based on its MPLS labels.
  • lady baltimore cake — a white layer cake using only the beaten whites of eggs and spread with a fruitnut filling consisting of raisins, figs, walnuts or pecans, and sometimes candied cherries.
  • liability insurance — insurance covering the insured against losses arising from injury or damage to another person or property.
  • logical unit number — (storage)   (LUN) A 3-bit identifier used on a SCSI bus to distinguish between up to eight devices (logical units) with the same SCSI ID.
  • lord baltimore cake — a yellow layer cake, using only the yolks of eggs and having a fruit-nut filling consisting of pecans, almonds, maraschino cherries, and macaroon crumbs.
  • magnesium carbonate — a white powder, MgCO 3 , insoluble in water and alcohol, soluble in acids, used in dentifrices and cosmetics, in medicine as an antacid, and as a refractory material.
  • malleable cast iron — white cast iron that has been malleablized.
  • mary mcleod bethune — Mary McLeod [muh-kloud] /məˈklaʊd/ (Show IPA), 1875–1955, U.S. educator and civil-rights leader.
  • megabits per second — (unit)   (Mbps, Mb/s) Millions of bits per second. A unit of data rate. 1 Mb/s = 1,000,000 bits per second (not 1,048,576). E.g. Ethernet can carry 10 Mbps.
  • mercurial barometer — mercury barometer.
  • mexican bean beetle — a ladybird beetle, Epilachna varivestis, introduced into the U.S. from Mexico, that feeds on the foliage of the bean plant.
  • molecular biologist — a specialist in the study of biological phenomena at the molecular level
  • monoclonal antibody — antibody produced by a laboratory-grown cell clone, either of a hybridoma or a virus-transformed lymphocyte, that is more abundant and uniform than natural antibody and is able to bind specifically to a single site on almost any chosen antigen or reveal previously unknown antigen sites: used as an analytic tool in scientific research and medical diagnosis and potentially important in the treatment of certain diseases. Abbreviation: MAb.
  • national coal board — a statutory corporation set up to run Britain's nationalised coal mining industry between 1947 and 1994, at which time the industry was privatized
  • neighbourhood watch — a scheme under which members of a community agree together to take responsibility for keeping an eye on each other's property, as a way of preventing crime
  • not by a long chalk — by no means; not possibly
  • objectfuscated code — (humour, programming)   Object-oriented code which has been abstracted to so many levels that no-one can understand it anymore. A play on obfuscated code.
  • office-block ballot — a ballot on which the candidates are listed alphabetically, with or without their party designations, in columns under the office for which they were nominated.
  • okeechobee waterway — a waterway in S Florida from the Atlantic Ocean to the Gulf of Mexico. 155 miles (244 km) long.
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