19-letter words containing d, o, l, r
- deflate compression — deflate
- deflationary spiral — Geometry. a plane curve generated by a point moving around a fixed point while constantly receding from or approaching it.
- deindustrialisation — Alternative spelling of deindustrialization.
- deindustrialization — the decline in importance of manufacturing industry in the economy of a nation or area
- demon internet ltd. — (company) One of the first company to provide public Internet access in the UK. The staff of Demon Systems Ltd., an established software house, started Demon Internet on 1992-06-01 and it was the first system in the United Kingdom to offer low cost full Internet access. It was started with the support of about 100 founder members who discussed the idea on Compulink Information Exchange, and were brave enough to pay a year's subscription in advance. They aimed to have 200 members in the first year to cover costs, ignoring any time spent. After about two weeks they realised they needed nearer 400. By November 1993 they had over 2000 subscribers and by August 1994 they had about 11000 with 20% per month growth. All revenues have been reinvested in resources and expansion of service. Demon link to Sprintlink in the United States making them totally independent. They peer with EUNet and PIPEX to ensure good connectivity in Great Britain as well as having links to the JANET/JIPS UK academic network. A direct line into the Department of Computing, Imperial College, London from their Central London Point of Presence (PoP) (styx.demon.co.uk) gives access to the biggest FTP and Archie site in Europe. Demon provide local call access to a large proportion of the UK. The central London PoP provides leased line connections at a cheaper rate for those customers in the central 0171 area. Further lines and PoPs are being added continuously. Subscribers get allocated an Internet Address and can choose a hostname within the demon.co.uk domain. They can have any number of e-mail address at that host. In October 1994 Demon confirmed a large contract with the major telecommunications provider Energis. They will supply guaranteed bandwidth to Demon's 10Mb/s backbone from several cities and towns. Several PoPs will be phased out and replaced with others during 1995. E-mail: <[email protected]>. Telephone: +44 (181) 349 0063. Address: Demon Internet Ltd., 42 Hendon Lane, Finchley, London N3 1TT, UK.
- demonstration model — a nearly new product, such as a car or washing machine, that has been used only to demonstrate its performance by a dealer and is offered for sale at a discount
- dendrochronological — Pertaining to dendrochronology.
- dendrogeomorphology — (geology) the science that uses dendrochronology to study changes to the Earth's surface over time.
- dental receptionist — a receptionist working in a dental surgery
- deoxyribonucleoside — a compound composed of deoxyribose and either a purine or a pyrimidine.
- deoxyribonucleotide — an ester of a deoxyribonucleoside and phosphoric acid; a constituent of DNA.
- department of labor — the department of the U.S. federal government that promotes and improves the welfare, opportunities, and working conditions of wage earners. Abbreviation: DOL.
- departmentalisation — Alternative spelling of departmentalization.
- departmentalization — to divide into departments.
- dependable software — software reliability
- dereliction of duty — Dereliction of duty is deliberate or accidental failure to do what you should do as part of your job.
- developable surface — a surface that can be flattened onto a plane without stretching or compressing any part of it, as a circular cone.
- devil's coach-horse — a large black rove beetle, Ocypus olens, with large jaws and ferocious habits
- devils-on-horseback — a savoury of prunes wrapped in bacon slices and served on toast
- diamond-leaf laurel — a tree, Pittosporum rhombifolium, of Australia, having coarsely toothed, oval or diamond-shaped leaves and white flowers, widely planted as an ornamental in the southwestern U.S.
- dielectric constant — Electricity. the ratio of the flux density produced by an electric field in a given dielectric to the flux density produced by that field in a vacuum.
- diethylstilbesterol — Misspelling of diethylstilbestrol\u200e.
- diethylstilboestrol — Diethylstilbestrol.
- digital electronics — (electronics) The implementation of two-valued logic using electronic logic gates such as and gates, or gates and flip-flops. In such circuits the logical values true and false are represented by two different voltages, e.g. 0V for false and +5V for true. Similarly, numbers are normally represented in binary using two different voltages to represented zero and one. Digital electronics contrasts with analogue electronics which represents continuously varying quantities like sound pressure using continuously varying voltages. Digital electronics is the foundation of modern computers and digital communications. Massively complex digital logic circuits with millions of gates can now be built onto a single integrated circuit such as a microprocessor and these circuits can perform millions of operations per second.
- digital photography — the taking or manipulation of photographs that are stored as data files on a computer.
- dimethylnitrosamine — a yellow, water-soluble carcinogenic liquid, C 2 H 6 N 2 O, found in tobacco smoke and certain foods: known to be a potent carcinogen. Abbreviation: DMN, DMNA.
- direct grant school — (in Britain, formerly) a school financed by endowment, fees, and a state grant conditional upon admittance of a percentage of nonpaying pupils nominated by the local education authority
- directional coupler — (communications) (tap) A passive device used in cable systems to divide and combine radio frequency signals. A directional coupler has at least three ports: line in, line out, and the tap. The signal passes between line in and line out ports with loss referred to as the insertion loss. A small portion of the signal power applied to the line in port passes to the tap port. A signal applied to the tap port is passed to the line in port less the tap attenuation value. The tap signals are isolated from the line out port to prevent reflections. A signal applied to the line out port passes to the line in port and is isolated from the tap port. Some devices provide more than one tap output line (multi-taps).
- disciples of christ — a Christian denomination, founded in the U.S. by Alexander Campbell in the early part of the 19th century, that rejects all creeds, holds the Bible as a sufficient rule of faith and practice, administers baptism by immersion, celebrates the Lord's Supper every Sunday, and has a congregational polity.
- disciplinary action — punishment or caution
- dispersion relation — the relationship between the angular frequency (ω;) of a wave and the magnitude of its wave vector (k). Thus the wave's speed is ω/k
- displaced homemaker — a woman recently divorced, separated, or widowed after many years as a homemaker.
- diversional therapy — the structured use of leisure time in recreation and play as a form of or supplement to conventional therapy
- do well for oneself — to thrive or succeed
- dollard-des-ormeaux — a town in S Quebec, in E Canada: suburb of Montreal.
- double counterpoint — invertible counterpoint using two transposable voices.
- double-helical gear — herringbone gear.
- draw the color line — to impose or accept the color line
- drill-down analysis — drill down
- drink the health of — to salute or celebrate with a toast
- dry-bulk cargo ship — a ship that carries an unpackaged dry cargo such as coal or grain; bulk carrier
- dynamic translation — (architecture) A virtual machine implementation approach, used to speed up execution of byte-code programs. To execute a program unit such as a method or a function, the virtual machine compiles its bytecodes into (hardware) machine code. The translated code is also placed in a cache, so that next time that unit's machine code can be executed immediately, without repeating the translation. This technique was pioneered by the commercial Smalltalk implementation currently known as VisualWorks, in the early 1980s. Currently it is also used by some implementations of the Java Virtual Machine under the name JIT (Just In Time compilation).
- dynatron oscillator — type of oscillator
- early purple orchid — a Eurasian orchid, Orchis mascula, with purplish-crimson flowers and stems marked with blackish-purple spots
- ebola virus disease — Also called Ebola fever, Ebola hemorrhagic fever, Ebola virus disease. a usually fatal disease, a type of hemorrhagic fever, caused by the Ebola virus and marked by high fever, severe gastrointestinal distress, and bleeding.
- ecatepec de morelos — a city in S central Mexico, a suburb of Mexico City: on a 12th-century Aztec site.
- educational adviser — a person who provides advice and training to teachers about teaching methods and educational policies
- elastic deformation — In elastic deformation a material changes shape when a stress is applied to it but goes back to its original state when the stress is removed.
- electrocardiographs — Plural form of electrocardiograph.
- electrocardiography — The measurement of electrical activity in the heart and the recording of such activity as a visual trace (on paper or on an oscilloscope screen), using electrodes placed on the skin of the limbs and chest.