19-letter words containing n, o, r, e, t, a
- deindustrialization — the decline in importance of manufacturing industry in the economy of a nation or area
- 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
- dental receptionist — a receptionist working in a dental surgery
- 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.
- department of state — the department of the U.S. federal government that sets forth and maintains the foreign policy of the U.S., especially in negotiations with foreign governments and international organizations. Abbreviation: DOS.
- departmentalisation — Alternative spelling of departmentalization.
- departmentalization — to divide into departments.
- dependable software — software reliability
- diamond ring effect — a phenomenon, sometimes observed immediately before and after a total eclipse of the sun, in which one of Baily's beads is much brighter than the others, resembling a diamond ring around the moon.
- dictionary of names — a dictionary of given names that indicates whether a name is usually male, female, or unisex and often includes origins as well as meanings; for example, as by indicating that Evangeline, meaning “good news,” comes from Greek. Used primarily as an aid in selecting a name for a baby, dictionaries of names may also include lists of famous people who have shared a name and information about its current popularity ranking.
- 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.
- difference equation — (mathematics) A relation between consecutive elements of a sequence. The first difference is D u(n) = u(n+1) - u(n) where u(n) is the nth element of sequence u. The second difference is u(n+2) + a u(n+1) + b u(n) = 0 can be converted to a difference equation (in this case, a second order linear difference equation): D2 u(n) + p D u(n) + q u(n) = 0 and vice versa. a, b, p, q are constants.
- diffraction pattern — the phenomenon exhibited by wave fronts that, passing the edge of an opaque body, are modulated, thereby causing a redistribution of energy within the front: it is detectable in light waves by the presence of a pattern of closely spaced dark and light bands (diffraction pattern) at the edge of a shadow.
- 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.
- 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
- direction indicator — aerial used in wireless communication
- 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).
- discretionary trust — a trust in which the beneficiaries' shares are not fixed in the trust deed but are left to the discretion of other persons, often the trustees
- discriminated union — (theory) The discriminated union of two sets A and B is A + B = {(inA, a) | a in A} U {(inB, b)| b in B} where inA and inB are arbitrary tags which specify which summand an element originates from. A type (especially an algebraic data type) might be described as a discriminated union if it is a sum type whose objects consist of a tag to say which part of the union they belong to and a value of the corresponding type.
- 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
- diversional therapy — the structured use of leisure time in recreation and play as a form of or supplement to conventional therapy
- domain architecture — (systems analysis) A generic, organisational structure or design for software systems in a domain. The domain architecture contains the designs that are intended to satisfy requirements specified in the domain model. A domain architecture can be adapted to create designs for software systems within a domain and also provides a framework for configuring assets within individual software systems.
- don the baggy green — to represent Australia at Test cricket
- draw the color line — to impose or accept the color line
- draw the curtain on — to end
- drink the health of — to salute or celebrate with a toast
- east dunbartonshire — a council area of central Scotland to the N of Glasgow: part of Strathclyde region from 1975 until 1996: mainly agricultural and residential. Administrative centre: Kirkintilloch. Pop: 106 970 (2003 est). Area: 172 sq km (66 sq miles)
- east-west relations — relations between the United States and its allies in the western alliance and the Soviet Union, it allies and other Communist countries, especially during the period between the end of World War II and the fall of the Soviet regime
- eastern coral snake — any of numerous venomous elapid snakes, found chiefly in the New World tropics, as Micrurus fulvius (eastern coral snake) of the southeastern U.S., often brilliantly marked with bands of red, yellow, and black.
- eat one's heart out — Anatomy. a hollow, pumplike organ of blood circulation, composed mainly of rhythmically contractile smooth muscle, located in the chest between the lungs and slightly to the left and consisting of four chambers: a right atrium that receives blood returning from the body via the superior and inferior vena cavae, a right ventricle that pumps the blood through the pulmonary artery to the lungs for oxygenation, a left atrium that receives the oxygenated blood via the pulmonary veins and passes it through the mitral valve, and a left ventricle that pumps the oxygenated blood, via the aorta, throughout the body.
- 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.
- electro-shock baton — a baton used as a weapon to pass an electric current through part of the body
- electrode potential — the potential difference developed when an electrode of an element is placed in a solution containing ions of that element
- electrodynamometers — Plural form of electrodynamometer.
- electrohydrodynamic — (physics) Of or pertaining to electrohydrodynamics.
- electromagnetically — By means of electromagnetism.
- electromechanically — In an electromechanical way.
- electron micrograph — a photograph or image of a specimen taken using an electron microscope
- electronegativities — Plural form of electronegativity.
- electronic graphics — (on television) the production of graphic designs and text by electronic means
- electronic keyboard — a typewriter keyboard used to operate an electronic device such as a computer, word processor, etc
- electronic magazine — (messaging, publication, web) (e-zine) A regular publication on some particular topic distributed in digital form, chiefly now via the web but also by electronic mail or floppy disk. E-zines are often distributed for free by enthusiasts.
- electrostatic units — the system of CGS electric and magnetic units that assigns the value of one to the dielectric constant of a vacuum
- elevator controller — An archetypal dumb embedded-systems application, like toaster (which superseded it). During one period (1983--84) in the deliberations of ANSI X3J11 (the C standardisation committee) this was the canonical example of a really stupid, memory-limited computation environment. "You can't require "printf(3)" to be part of the default run-time library - what if you're targeting an elevator controller?" Elevator controllers became important rhetorical weapons on both sides of several holy wars.
- employment tribunal — (in England, Scotland, and Wales) a tribunal that rules on disputes between employers and employees regarding unfair dismissal, redundancy, etc
- end of transmission — (character) (EOT) The mnemonic for ASCII character 4.
- endowment assurance — a form of life insurance that provides for the payment of a specified sum directly to the policyholder at a designated date or to his beneficiary should he die before this date
- endowment insurance — Endowment insurance is a type of life insurance that pays a particular sum directly to the policyholder at a stated date, or to a beneficiary if the policyholder dies before this date.