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17-letter words containing d, y, e

  • dimethylhydrazine — a flammable, highly toxic, and colorless liquid, C 2 H 8 N 2 , used as a component in jet and rocket fuels.
  • dimethylsulfoxide — DMSO.
  • dionysius exiguus — died a.d. 556? Scythian monk, chronologist, and scholar: devised the current system of reckoning the Christian era.
  • diphenylacetylene — tolan.
  • diphenylhydantoin — a white, slightly water-soluble powder, C 15 H 11 N 2 O 2 , used in the form of its sodium salt to prevent or arrest convulsions in epilepsy.
  • directory service — (database, networking)   A structured repository of information on people and resources within an organisation, facilitating management and communication. On a LAN or WAN the directory service identifies all aspects of the network including users, software, hardware, and the various rights and policies assigned to each. As a result applications can access information without knowing where a particular resource is physically located, and users interact oblivious to the network topology and protocols. To allow heterogeneous networks to share directory information the ITU proposed a common structure called X.500. However, its complexity and lack of seamless Internet support led to the development of Lightweight Directory Access Protocol (LDAP) which has continued to evolve under the aegis of the IETF. Despite its name LDAP is too closely linked to X.500 to be "lightweight".
  • disability clause — a clause in a life-insurance policy providing for waiver of premium and sometimes payment of monthly income if the policyholder becomes totally and permanently disabled.
  • disadvantageously — In a disadvantageous manner.
  • disaster recovery — (business)   (DR) Planning and implementation of procedures and facilities for use when essential systems are not available for a period long enough to have a significant impact on the business, e.g. when the head office is blown up. Disasters include natural: fire, flood, lightning, hurricane; hardware: power failure, component failure, head crash; software failure: bugs, resources; vandalism: arson, bombing, cracking, theft; data corruption or loss: human error, media failure; communications: computer network equipment, network storm, telephones; security: passwords compromised, computer virus; legal: change in legislation; personnel: unavailability of essential staff, industrial action. Companies need to plan for disaster: before: risk analysis, preventive measures, training; during: how should staff and systems respond; after: recovery measures, post mortem analysis. Hardware can usually be replaced and is usually insured. Software and data needs to be backed up off site. Alternative communication systems should be arranged in case of network failure or inaccessible premises, e.g. emergency telephone number, home working, alternative data center.
  • disorderly person — a person guilty of disorderly conduct.
  • disrespectability — Lack of respectability.
  • district attorney — an officer who acts as attorney for the people or government within a specified district.
  • dollar a year man — of or being an official or employee, especially a federal appointee, who receives a token annual salary, usually of one dollar: a dollar-a-year man.
  • double pair royal — a set of four cards of the same denomination, worth 12 points.
  • downwardly mobile — See under vertical mobility (def 1).
  • downwardly-mobile — See under vertical mobility (def 1).
  • dress-down friday — In some companies employees are allowed to wear clothes that are less smart than usual on a Friday. This day is known as a dress-down Friday.
  • drive-by download — an incidence of an unwanted program being automatically downloaded to a computer, often without the user's knowledge
  • drive-by shooting — an incident in which a person, building, or vehicle is shot at by someone in a moving vehicle
  • duality principle — the principle that a mathematical duality exists under certain conditions.
  • dwarf huckleberry — tangleberry.
  • dyer-s--greenweed — woadwaxen.
  • dynamic execution — (processor)   A combination of techniques - multiple branch prediction, data flow analysis and speculative execution. Intel implemented Dynamic Execution in the P6 after analysing the execution of billions of lines of code.
  • dynamic insurance — Dynamic insurance is a type of insurance coverage where the policyholder can choose to increase benefits and premiums by a fixed percentage each year to offset the effects of inflation.
  • dynamically typed — dynamic typing
  • dynamics analyzer — (language)   (DYANA) An early language specialised for vibrational and other dynamic physical systems.
  • early closing day — a day on which most shops in a town or area close after lunch
  • eastern orthodoxy — the faith, practice, membership, and government of the Eastern Orthodox Church.
  • edward the martyr — Saint. ?963–978 ad, king of England (975–78), son of Edgar: murdered. Feast day: March 18
  • electricity board — a company which supplies electricity
  • embroidery thread — a thread used for embroidery
  • emergency landing — an occasion when a place is forced to land: for example, because of a mechanical fault, bad weather, terrorism, etc.
  • employee discount — When the employees of a store or other retail business are entitled to an employee discount, they do not have to pay the full price for goods they buy in the store.
  • employer-provided — Employer-provided insurance is arranged or funded by the organization for which the policyholder works.
  • enzyme deficiency — failure of the body to produce a specific enzy
  • epicycloidal gear — a gear of an epicyclic train
  • epidemiologically — With regard to epidemiology.
  • escaping tendency — a property of a gas, related to its partial pressure, that expresses its tendency to escape or expand, given by d(log ef) = dμ/ RT, where μ is the chemical potential, R the gas constant, and T the thermodynamic temperature
  • ethinyloestradiol — Alternative form of ethinylestradiol.
  • eupen and malmédy — a region of Belgium in Liège province: ceded by Germany in 1919. Pop: 29 372 (2004 est)
  • exemplary damages — law: fine imposed as a deterrent
  • extraordinary ray — the plane-polarized ray of light that does not obey the laws of refraction in a doubly refracting crystal
  • eyelet embroidery — a piece of embroidery decorated with such work
  • fancy dress party — a party at which the guests wear fancy dress
  • feasibility study — (systems analysis)   Part of the systems develpment life cycle which aims to determine whether it is sensible to develop some system. The most popular model of feasibility study is "TELOS", standing for Technical, Economic, Legal, Operational, Schedule. Technical Feasibility: does the technology exist to implement the proposed system? Is it a practical proposition? Economic Feasibility: is the system cost-effective? Do benefits outweigh costs? Legal Feasibility: is there any conflict between the proposed system and legal requirements, e.g. the Data Protection Act? Operational Feasibility: are the current work practices and procedures adequate to support the new system? Schedule Feasibility: can the system be developed in time? After the feasibility study, the requirements analysis should be carried out.
  • field penny-cress — the common penny-cress, Thlaspi arvense.
  • firehose syndrome — (networking, jargon)   An absence, failure or inadequacy of flow control mechanisms causing the sender to overwhelm the receiver. The implication is that, like trying to drink from a firehose, the consequenses are worse than just loss of data, e.g. the receiver may crash. See ping-flood.
  • floppy disk drive — disk drive
  • forever and a day — without ever ending; eternally: to last forever.
  • four-eyed opossum — a small opossum, Metachirops (Philander) opossum, ranging from Mexico to Brazil, having a white spot above each eye.
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