21-letter words containing t, o, l, d
- controlled experiment — an experiment or trial that uses controls, usually separating the subjects into one or more control groups and experimental groups.
- conventional medicine — the type of medicine that is generally used in the US and Europe which uses drugs and surgery as a form of treatment
- convertible debenture — a convertible bond that is not secured with collateral.
- coordination language — (networking, protocol) A language defined specifically to allow two or more parties (components) to communicate in order to accomplish some shared goal. Examples of coordination languages are Linda and Xerox's CLF (STITCH).
- cordillera occidental — the western coastal ranges of the Andes, in Peru and Colombia.
- cornella de llobregat — a city in N Spain.
- corpuscular radiation — radiation consisting of atomic and subatomic particles, as alpha particles, beta particles, and neutrons.
- cosmological redshift — the part of the redshift of celestial objects resulting from the expansion of the universe.
- crude oil dehydration — Crude oil dehydration is the removal of water or water vapor from crude oil, by separating the oil from the water, often in a rotating centrifuge.
- dataflow architecture — a means of arranging computer data processing in which operations are governed by the data present and the processing it requires rather than by a prewritten program that awaits data to be processed
- de-ontological ethics — the branch of ethics dealing with right action and the nature of duty, without regard to the goodness or value of motives or the desirability of the ends of any act.
- demand-pull inflation — inflation in which rising demand results in a rise in prices.
- democratic centralism — the Leninist principle that policy should be decided centrally by officials, who are nominally democratically elected
- denominational school — a school associated with a particular religious denomination
- deployment descriptor — (programming) (DD) A J2EE configuration file.
- deprovincialization's — to make provincial in character.
- designated employment — (in Britain) any of certain kinds of jobs reserved for handicapped workers under the Disabled Persons (Employment) Act 1944
- development education — an area of study that aims to give pupils an understanding of their involvement in world affairs
- developmental biology — the study of the development of multicellular organisms, including the study of the earliest stages of embryonic structure and tissue differentiation
- diapason normal pitch — a standard of pitch in which A above middle C is established at 435 vibrations per second.
- differential equation — an equation involving differentials or derivatives.
- differential geometry — the branch of mathematics that deals with the application of the principles of differential and integral calculus to the study of curves and surfaces.
- differential operator — a function, usually expressed as a polynomial, that indicates linear combinations of the derivatives of the expression on which it operates.
- differential quotient — derivative (def 6).
- differential topology — the branch of topology that studies the properties of differentiable manifolds that remain invariant under diffeomorphisms.
- differential-quotient — something that has been derived.
- digital videocassette — a videocassette containing magnetic tape used for high-fidelity digital recording or playback of video. Abbreviation: DVC.
- disruptive technology — A disruptive technology is a new technology, such as computers and the Internet, which has a rapid and major effect on technologies that existed before.
- distinguished-looking — having a dignified and attractive appearance
- document object model — (hypertext, language, web) A W3C specification for application program interfaces for accessing the content of HTML and XML documents.
- double predestination — the doctrine that God has foreordained both those who will be saved and those who will be damned.
- double spanish burton — a tackle having one standing block and two running blocks, giving a mechanical advantage of five, neglecting friction.
- downhole safety valve — A downhole safety valve is a piece of safety equipment used inside a well, which isolates wellbore pressure and fluid if something bad happens.
- eccles-jordan circuit — flip-flop
- educational sociology — the application of sociological principles and methods to the solution of problems in an educational system.
- electromagnetic field — a field of force associated with a moving electric charge equivalent to an electric field and a magnetic field at right angles to each other and to the direction of propagation
- emitter coupled logic — (ECL) (Or "Current Mode Logic") A technology for building logic gates where the emitter of a transistor is used as the output rather than its collector. ECL has a propagation time of 0.5 - 2 ns (faster than TTL) and a power dissipation 3 - 10 times higher than TTL.
- endoplasmic reticulum — an extensive intracellular membrane system whose functions include synthesis and transport of lipids and, in regions where ribosomes are attached, of proteins
- enharmonic modulation — a change of key achieved by regarding a note in one key as an equivalent note in another. Thus E flat in the key of A flat could be regarded as D sharp in the key of B major
- environmental studies — a university course studying the environment and related issues
- extensible vax editor — (text, tool) (EVE) A DEC product implemented using DEC's Text Processing Utility (TPU).
- faculty board meeting — a meeting of the governing body of a faculty
- ferric sodium oxalate — an emerald-green, crystalline, extremely water-soluble salt, used in photography and blueprinting.
- first-dollar coverage — insurance that provides payment for the full loss up to the insured amount with no deductibles.
- flat-coated retriever — one of an English breed of large sporting dogs having a flat, dense, shiny black or liver-colored coat, small ears, and long jaws, used for retrieving game from both water and land.
- flip someone the bird — give someone the finger (see phrase under finger)
- forward compatibility — (jargon) The ability to accept input from later versions of itself. Forward compatibility is harder to achieve than backward compatibility, since, in the backward case, the input format is know whereas a forward compatible system needs to cope gracefully with unknown future features. An example of future compatibility is the stipulation that a web browser should ignore HTML tags it does not recognise. See also extensible.
- four-footed butterfly — any of several butterflies of the family Nymphalidae, including the fritillaries, mourning cloaks, anglewings, and commas, characterized by reduced, nonfunctional forelegs.
- fraudulent conversion — conversion committed with the intent to defraud
- functional dependency — (database) Given a relation R (in a relational database), attribute Y of R is functionally dependent on attribute X of R and X of R functionally determines Y of R (in symbols R.X -> R.Y) if and only if each X in R has associated with it precisely one Y in R (at any one time). Attributes X and Y may be composite. This is very close to a function in the mathematical sense.