17-letter words containing t, y, d, e
- deadly nightshade — a poisonous Eurasian solanaceous plant, Atropa belladonna, having dull purple bell-shaped flowers and small very poisonous black berries
- defence secretary — the member of a government who is responsible for the country's armed forces
- dehydrochlorinate — to remove hydrogen chloride or chlorine and hydrogen from (a substance).
- delaney amendment — an amendment to the U. S. Food, Drug and Cosmetic Act banning the use of carcinogenic food additives, as certain artificial sweeteners and food colorings.
- delay instruction — delayed control-transfer
- demythologization — The act of demythologizing, or something demythologized.
- dendroclimatology — The science that uses dendrochronology to reconstruct historical climate conditions.
- dephosphorylation — the removal of a phosphate group from an organic compound, as in the changing of ATP to ADP.
- descending rhythm — a rhythmic pattern created by the succession of metrical feet each of which is composed of one accented syllable followed by one or more unaccented syllables.
- despotic monarchy — absolute monarchy.
- desynchronisation — (British spelling) Alternative form of desynchronization.
- desynchronization — to cause to indicate the same time, as one timepiece with another: Synchronize your watches.
- deterministically — the doctrine that all facts and events exemplify natural laws.
- dialect geography — linguistic geography
- dialectologically — In terms of dialectology.
- dibutyl phthalate — a colorless oily liquid, C 16 H 22 O 4 , insoluble in water, used as a solvent, insect repellent, and plasticizer.
- dideoxynucleotide — (biochemistry) Any nucleotide formed from a deoxynucleotide by loss of a second hydroxy group from the deoxyribose group.
- diethylene glycol — a syrupy colorless liquid, C 4 H 10 O 3 , used as a solvent for cellulose nitrate and as a fabric softener.
- diethyltryptamine — a synthetic derivative of tryptamine with hallucinogenic and psychotogenic effects. Abbreviation: DET.
- differentiability — The ability to be differentiated.
- dihydroergotamine — an ergot alkaloid, C 33 H 37 N 5 O 5 , used in the treatment of various types of migraine headache.
- dimethylformamide — a colourless liquid widely used as a solvent and sometimes as a catalyst. Formula: (CH3)2NCHO
- 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.
- 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.
- disrespectability — Lack of respectability.
- district attorney — an officer who acts as attorney for the people or government within a specified district.
- 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.
- 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.
- dynamically typed — dynamic typing
- 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
- 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.
- 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.
- 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.
- friend of dorothy — a male homosexual
- front-end payment — a payment required or incurred in advance of a project in order to get it under way
- garden strawberry — a plant which has white flowers and red edible fruits and is spread by runners, Fragaria ananassa