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20-letter words containing a, r, o, n

  • cross someone's path — to meet or thwart someone
  • crossword dictionary — a dictionary that lists common clues found in crossword puzzles with potential answer words. In books, the lists are usually sorted by the number of letters in the answer, while an online crossword dictionary, such as the Dictionary.com Crossword Solver, is able to analyze queries electronically, examining either the clue or the number and pattern of letters already filled in to arrive at suggested answers.
  • crude oil evaluation — Crude oil evaluation is the process of assessing the chemical and physical properties of crude oil, against particular standards.
  • cut one's own throat — to be the means of one's own ruin
  • cut the gordian knot — to find a quick, bold solution for a perplexing problem
  • cycloidal propulsion — propulsion of a vessel by propellers of controllable pitch that steer as well as propel.
  • cytosine arabinoside — cytarabine.
  • data dictionary file — (database)   (DDF) A set of files describing the structure of a database file. DDFs define database tables and include information about file locations, field layouts and indexes. DDFs are the standard method for defining field and index characteristics for Btrieve files.
  • database transaction — (database)   A set of related changes applied to a database. The term typically implies that either all of the changes should be applied or, in the event of an error, none of them, i.e. the transaction should be atomic. Atomicity is one of the ACID properties a transaction can have, another is isolation - preventing interference between processes trying to access the database cocurrently. This is usually achieved by some form of locking - where one process takes exclusive control of a database table or row for the duration of the transaction, preventing other processes from accessing the locked data. The canonical example of a transaction is transferring money between two bank accounts by subtracting it from one and adding it to the other. Some relational database management systems require the user to explicitly start a transaction and then either commit it (if all the individual steps are successful) or roll it back (if there are any errors).
  • de facto segregation — racial, ethnic, or other segregation resulting from societal differences between groups, as socioeconomic or political disparity, without institutionalized legislation intended to segregate.
  • decahydronaphthalene — a colorless, aromatic liquid, C 10 H 18 , insoluble in water and soluble in alcohol and ether: used as a solvent for oils, fats, etc., in cleaning fluids, lubricants, etc.
  • declaratory judgment — a judgment that merely decides the rights of parties in a given transaction, situation, or dispute but does not order any action or award damages.
  • decompartmentalizing — Present participle of decompartmentalize.
  • defense data network — (DDN) A global communications network serving the US Department of Defense. Composed of MILNET, other portions of the Internet, and classified networks which are not part of the Internet. The DDN is used to connect military installations and is managed by the Defense Information Systems Agency.
  • democracy in america — French Démocracie en Amérique. a study (1835) by Alexis de Tocqueville of American political institutions.
  • denali national park — a national park in S central Alaska, including Denali (mountain). 3030 sq. mi. (7850 sq. km).
  • department of energy — the department of the U.S. federal government that sets forth and maintains the national energy policy, including energy conservation, environmental protection, etc. Abbreviation: DOE.
  • department of health — government ministry for health matters
  • depreciation expense — A depreciation expense is the amount deducted from gross profit to allow for a reduction in the value of something because of its age or how much it has been used.
  • descriptive notation — a method of denoting the squares on the chessboard in which each player names the files from the pieces that stand on them at the opening and numbers the ranks away from himself
  • desmopressin acetate — a vasopressin analogue, C 46 H 64 N 14 O 12 S 2 , used in the treatment of diabetes insipidus.
  • deterritorialization — The eradication of social, political, or cultural practices from their native places and populations.
  • developing-out paper — a sensitized printing paper requiring development in order to bring out the image. Abbreviation: D.O.P.
  • diabetic retinopathy — a disorder of the blood vessels of the retina occurring as a complication of poorly controlled diabetes mellitus and often leading to blindness.
  • diamond in the rough — a diamond in its natural state
  • diamondback terrapin — any edible North American terrapin of the genus Malaclemys, esp M. terrapin, occurring in brackish and tidal waters and having diamond-shaped markings on the shell: family Emydidae
  • dickless workstation — (abuse)   Extremely pejorative hackerism for "diskless workstation".
  • dictionary catalogue — a catalogue of the authors, titles, and subjects of books in one alphabetical sequence
  • diels-alder reaction — the reaction in which a conjugated diene combines with a double or triple bond of a given compound to form a ring of six carbon atoms.
  • differential housing — the casing that houses the differential of a motor vehicle
  • dirac delta function — delta function.
  • directional drilling — a method of drilling for oil in which the well is not drilled vertically, as when a number of wells are to be drilled from a single platform to reach different areas of an oil field
  • directory assistance — a telephone company service that furnishes telephone directory information over the telephone.
  • directory user agent — (DUA) The software that accesses the X.500 Directory Service on behalf of the directory user. The directory user may be a person or another software element.
  • discretionary income — money for luxuries
  • diskless workstation — (computer, networking)   A personal computer or workstation which has neither a hard disk nor floppy disk drive and which performs all file access via a local area network connection to a file server. The lowest level bootstrap code is stored in non-volatile storage. This uses a simple protocol such as BOOTP to request and download more sophisticated boot code and eventually, the operating system. The archtypal product was the 3Station developed by Bob Metcalfe at 3Com. Another example was the Sun 3/50. Diskless workstations are ideal when many users are running the same application. They are small, quiet, more reliable than products with disks, and help prevent both the theft of data and the introduction of viruses since the software and data available on them is controlled by the network administrator or system administrator. They do however rely on a server which becomes a disadvantage if it is heavily loaded or down. See also breath-of-life packet.
  • dispersion hardening — the strengthening of an alloy as a result of the presence of fine particles in the lattice
  • disproportionateness — The state or quality of being disproportionate or out of proportion.
  • distribution channel — trade: retailer
  • do someone a service — If you do someone a service, you do something that helps or benefits them.
  • documentary evidence — law: written
  • dolly varden pattern — a fabric print consisting of bouquets of flowers.
  • double fertilization — the fertilization process characteristic of flowering plants, in which one sperm cell of a pollen grain fertilizes an egg cell while a second fuses with two polar nuclei to produce a triploid body that gives rise to the endosperm.
  • draw close/draw near — If an event or period of time is drawing closer or is drawing nearer, it is approaching.
  • drum and bugle corps — a marching band of drum players and buglers.
  • drunk and disorderly — If someone is charged with being drunk and disorderly, they are charged with being drunk and behaving in a noisy, offensive, or violent way in public.
  • duck-billed dinosaur — hadrosaur.
  • early modern english — the English language represented in printed documents of the period starting with Caxton (1476) and ending with Dryden (1700).
  • early sunday morning — a painting (1930) by Edward Hopper.
  • eastern roman empire — the eastern of the two empires created by the division of the Roman Empire in 395 ad
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