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20-letter words containing s, t, o

  • 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.
  • decomposed petri net — (parallel)   (DPN) A Petri net that has been split into multiple, interconnected nets. This makes it easier to analyse or run the net. DPNs are the basis of concurrency in ConC.
  • deep vein thrombosis — Deep vein thrombosis is a serious medical condition caused by blood clots in the legs moving up to the lungs. The abbreviation DVT is also used.
  • deep-vein thrombosis — a condition in which a blood clot forms in a vein deep beneath the skin, typically in the leg or pelvic area: Immobility and lack of exercise are risk factors for deep-vein thrombosis.
  • 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.
  • definite description — a description that is modified by the definite article or a possessive, such as the woman in white or Rosemary's baby
  • deinstitutionalizing — Present participle of deinstitutionalize.
  • democratic socialism — socialism, or a modified form of socialism, achieved by a gradual transition by and under democratic political processes.
  • deontological ethics — the branch of ethics dealing with right action and the nature of duty, without regard to the goodness or value of motives or the desirability of the ends of any act.
  • deoxyribonucleotides — Plural form of deoxyribonucleotide.
  • 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 geometry — the study of the projection of three-dimensional figures onto a plane surface
  • 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.
  • devil's bit scabious — a similar and related Eurasian marsh plant, Succisa pratensis
  • diammonium phosphate — a white, crystalline, water-soluble compound, (NH 4) 2 HPO 4 , used as fertilizer, in fire extinguishers, etc.
  • dichotomous question — a question to which there can only be one of two answers, often "yes" or "no"
  • dickless workstation — (abuse)   Extremely pejorative hackerism for "diskless workstation".
  • 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.
  • difference threshold — the minimum difference between two stimuli that is just detectable by a person
  • differential housing — the casing that houses the differential of a motor vehicle
  • diisobutyl phthalate — a clear, colorless liquid, C 14 H 26 O 4 , used chiefly as a plasticizer for nitrocellulose.
  • diophantine analysis — any of several methods for finding integral solutions for equations with more than one variable whose coefficients are integers.
  • diplomatic secretary — secretary (def 5).
  • diplomatic-secretary — secretary (def 5).
  • direct memory access — (architecture)   (DMA) A facility of some architectures which allows a peripheral to read and write memory without intervention by the CPU. DMA is a limited form of bus mastering.
  • 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.
  • disability allowance — an amount of money paid by the government to people who are unable to work because of a disability. This is a general term or, in the UK, a shorter way of referring to what is officially called the Disability Living Allowance
  • discounted cash flow — a technique for appraising an investment that takes into account the different values of future returns according to when they will be received
  • 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.
  • displacement tonnage — the number of long tons of water displaced by a vessel, light or load displacement being specified.
  • disproportionateness — The state or quality of being disproportionate or out of proportion.
  • distribution channel — trade: retailer
  • district court judge — a judge presiding over a lower court
  • district high school — a school in a rural area that includes primary and post-primary classes
  • district of columbia — a federal area in the E United States, on the Potomac, coextensive with the federal capital, Washington. 69 sq. mi. (179 sq. km). Abbreviation: DC (for use with zip code), D.C.
  • do one's nut/go nuts — If someone goes nuts, or in British English does their nut, they become extremely angry.
  • doctor of philosophy — Also called doctorate. the highest degree awarded by a graduate school, usually to a person who has completed at least three years of graduate study and a dissertation approved by a board of professors.
  • domestic heating oil — a liquid petroleum product used to fuel residential building furnaces or boilers
  • double decomposition — a reaction whose result is the interchange of two parts of two substances to form two new substances, as AgNO 3 + NaCl → AgCl + NaNO 3 .
  • double-aspect theory — a monistic theory that holds that mind and body are not distinct substances but merely different aspects of a single substance
  • draw the short straw — to be the person (as in drawing lots) to whom an unwelcome task or fate falls
  • dressed to the nines — a cardinal number, eight plus one.
  • eastern roman empire — the eastern of the two empires created by the division of the Roman Empire in 395 ad
  • eat out of sb's hand — If you have someone eating out of your hand, they are completely under your control.
  • ecclesiastical court — a church court in ecclesiastical matters, presided over by members of the clergy and usually having no compulsory jurisdiction.
  • economic determinism — the doctrine that all social, cultural, political, and intellectual forms are determined by or result from such economic factors as the quality of natural resources, productive capability, technological development, or the distribution of wealth.
  • economic rationalism — an economic policy based on the efficiency of market forces, characterized by minimal government intervention, tax cuts, privatization, and deregulation of labour markets
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