17-letter words containing a, d, u, l, t
- digital audiotape — a cassette containing magnetic tape used for high-fidelity digital recording or playback of audio. Abbreviation: DAT.
- digital signature — an encrypted digital code appended to an electronic document to verify that it was created by a known source and has not been altered.
- 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.
- displacement hull — a hull that displaces a significant volume of water when under way.
- disqualifications — Plural form of disqualification.
- double insulation — Double insulation is insulation that consists of both basic insulation and supplementary insulation.
- double quatrefoil — a charge having the form of a foil with eight leaves, used especially as the cadency mark of a ninth son.
- double refraction — the separation of a ray of light into two unequally refracted, plane-polarized rays of orthogonal polarizations, occurring in crystals in which the velocity of light rays is not the same in all directions.
- double track line — a railway line with double track
- douglas engelbart — (person) Douglas C. Engelbart, the inventor of the mouse. On 1968-12-09, Douglas C. Engelbart and the group of 17 researchers working with him in the Augmentation Research Center at Stanford Research Institute in Menlo Park, California, USA, presented a 90-minute live public demonstration of the on live system, NLS, they had been working on since 1962. The presentation was a session in the of the Fall Joint Computer Conference held at the Convention Center in San Francisco, and it was attended by about 1000 computer professionals. This was the public debut of the computer mouse, hypertext, object addressing, dynamic file linking and shared-screen collaboration involving two persons at different sites communicating over a network with audio and video interface. The original 90-minute video: Hyperlinks, Mouse, Web-board.
- douglas macarthur — Douglas, 1880–1964, U.S. general: supreme commander of allied forces in SW Pacific during World War II and of UN forces in Korea 1950–51.
- drive up the wall — to cause to become crazy or furious
- duality principle — the principle that a mathematical duality exists under certain conditions.
- dull as dishwater — water in which dishes are, or have been, washed.
- dutch elm disease — a disease of elms characterized by wilting, yellowing, and falling of the leaves and caused by a fungus, Ceratostomella ulmi, transmitted by bark beetles.
- east indian lotus — a southern Asian lotus, Nelumbo nucifera, of the water lily family, having fragrant pink or rose flowers.
- equalization fund — a monetary reserve established by a country to provide funds for maintaining the official exchange rates of its currency by equalizing the buying and selling of foreign exchange.
- false bread-fruit — ceriman.
- 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.
- feint-ruled paper — writing paper with light horizontal lines printed across at regular intervals
- find fault (with) — to seek and point out faults (of); complain (about); criticize
- fluid lubrication — lubrication in which bearing surfaces are separated by an oil film sustained by the motion of the parts
- foucault pendulum — a pendulum that demonstrates the rotation of the earth by exhibiting an apparent change in its plane of oscillation.
- full load current — A full load current is the largest current that a motor or other device is designed to carry under particular conditions.
- galactic latitude — the angular distance from the galactic equator of a point on the celestial sphere.
- great namaqualand — an arid coastal region in the S part of Namibia, extending into the Cape of Good Hope province of the Republic of South Africa, divided by the Orange River into two regions, one in Namibia (Great Namaqualand) the other in South Africa (Little Namaqualand) inhabited by the Nama.
- greenland current — the ocean current flowing clockwise around S Greenland.
- greenland halibut — a flatfish, Reinhardtius hippoglossoides, similar and related to the halibut
- ground angle shot — a photograph or film shot in which the lens is near the ground, usually pointing up somewhat
- guardian ad litem — a person appointed by a court as guardian of an infant or other person to act on his or her behalf in a particular action or proceeding.
- gunboat diplomacy — diplomatic relations involving the use or threat of military force, especially by a powerful nation against a weaker one.
- gustavus adolphus — (Gustavus Adolphus) 1778–1837, king of Sweden 1792–1809 (son of Gustavus III).
- gustavus-adolphus — (Gustavus Adolphus) 1778–1837, king of Sweden 1792–1809 (son of Gustavus III).
- heterochlamydeous — (of a plant) having a perianth consisting of distinct sepals and petals
- hillel foundation — a national organization, founded in 1924 by the B'nai B'rith, that institutes and administers programs designed to enrich the religious, cultural, and social life of Jewish college students.
- homeland security — national defence
- hydraulic circuit — a circuit through which water or another liquid, instead of electric current, flows, but which otherwise operates in the same way as an electric circuit
- i wouldn't say no — You use 'I wouldn't say no' to indicate that you would like something, especially something that has just been offered to you.
- imitation doublet — a doublet formed entirely of glass.
- indicial equation — an equation that is obtained from a given linear differential equation and that indicates whether a solution in power series form exists for the differential equation.
- indistinguishable — not distinguishable.
- indistinguishably — In an indistinguishable manner; so that separate components or differences cannot be discerned.
- individualisation — Alternative spelling of individualization.
- individualization — to make individual or distinctive; give an individual or distinctive character to.
- industrial action — job action.
- industrial design — the art that deals with the design problems of manufactured objects, including problems of designing such objects with consideration for available materials and means of production, of designing packages, bottles, etc., for manufactured goods, and of graphic design for manufactured objects, packages, etc.
- industrial estate — industrial park.
- industrial injury — an injury sustained by an employee of an industrial company during the course of their work
- industrial school — a school for teaching one or more branches of industry; trade or vocational school.