19-letter words containing e, p, i, c, o
- data encryption key — (DEK) Used for the encryption of message text and for the computation of message integrity checks (signatures). See cryptography.
- data protection act — (legal) (DPA) A UK law guaranteeing rights to individuals in relation to personal data that others hold on them. For example, under the DPA, you have the right to see what data a company holds on you.
- de-compartmentalize — to divide into categories or compartments.
- deaf without speech — (usually of a prelingually deaf person) able to utter sounds but not speak
- deflate compression — deflate
- dental receptionist — a receptionist working in a dental surgery
- depletion allowance — a tax allowance granted in certain industries, such as the oil and gas industries, to compensate for the depletion of the oil, gas, etc owned by the company
- detective inspector — a police officer who investigates crime and who ranks above a detective sergeant but below a detective chief inspector
- 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.
- dihydrostreptomycin — an antibiotic, C 21 H 41 N 7 O 12 , derived by organic synthesis from and believed to be less toxic than streptomycin: used in the form of its sulfate chiefly in the treatment of tuberculosis.
- dimetric projection — a type of axonometric projection in which the object is shown with two of its three principal axes tilted equally from the plane of viewing
- direct-vision prism — Amici prism.
- 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.
- discovery procedure — any rigorous method by the application of which a grammar might be constructed from a corpus of utterances in a language; an algorithm leading from data to a formulation.
- disjunctive pronoun — an inflection of pronouns in some languages that is used alone or after a preposition, such as moi in French
- displaced homemaker — a woman recently divorced, separated, or widowed after many years as a homemaker.
- dobsonian telescope — a relatively inexpensive Newtonian telescope, suitable for visual but not photographic use, in which the tube assembly slips freely in the lower base.
- double counterpoint — invertible counterpoint using two transposable voices.
- early purple orchid — a Eurasian orchid, Orchis mascula, with purplish-crimson flowers and stems marked with blackish-purple spots
- 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.
- electrode potential — the potential difference developed when an electrode of an element is placed in a solution containing ions of that element
- electron micrograph — a photograph or image of a specimen taken using an electron microscope
- electron microscope — An electron microscope is a type of very powerful microscope that uses electrons instead of light to produce a magnified image of something.
- electron multiplier — a device for amplifying and measuring a flux of electrons. Each electron hits an anode surface and releases secondary electrons that are accelerated to a second surface; after several such stages a measurable pulse of current is obtained
- electronic graphics — (on television) the production of graphic designs and text by electronic means
- electrophoretically — By means of electrophoresis.
- electrophotographic — Of or pertaining to electrophotography.
- electrophysiologist — A physiologist whose speciality is electrophysiology.
- electrotherapeutics — (medicine) the use of electricity in therapeutics.
- european commission — the executive body of the European Union formed in 1967, which initiates action in the EU and mediates between member governments
- evaporative cooling — a method of reducing temperature that uses evaporation
- exclusion principle — Pauli exclusion principle
- exophthalmic goiter — a disease of unknown cause characterized by enlargement of the thyroid gland, overproduction of the thyroid hormone, and abnormal protrusion of the eyeballs
- exophthalmic goitre — a form of hyperthyroidism characterized by enlargement of the thyroid gland, protrusion of the eyeballs, increased basal metabolic rate, and weight loss
- expeditionary force — An expeditionary force is a group of soldiers who are sent to fight in a foreign country.
- expressionistically — In an expressionistic manner.
- extendible compiler — (language) (ETC) A Fortran-like compiler that can be extended with macros.
- facultative apomict — a plant that can reproduce sexually or asexually.
- family practitioner — medical specialization in general practice, requiring training beyond that of general practice and leading to board certification.
- farmers cooperative — an organization of farmers for marketing their products or buying supplies.
- fighter-interceptor — a fighter plane used for the defense of a region against air attack, especially by attacking bombers.
- forensic psychiatry — the use of psychiatric knowledge and techniques in questions of law, as in determining legal insanity.
- four eyes principle — the requirement that a business transaction be approved by at least two individuals
- fractal compression — (algorithm) A technique for encoding images using fractals.
- gel electrophoresis — a technique for separating protein molecules of varying sizes in a mixture by moving them through a block of gel, as of agarose or polyacrylamide, by means of an electric field, with smaller molecules moving faster and therefore farther than larger ones.
- general post office — (in the U.S. postal system) the main post office of a city, county, etc., that also has branch post offices. Abbreviation: G.P.O., GPO.
- generic programming — (programming) A programming technique which aims to make programs more adaptable by making them more general. Generic programs often embody non-traditional kinds of polymorphism; ordinary programs are obtained from them by suitably instantiating their parameters. In contrast with normal programs, the parameters of a generic programs are often quite rich in structure. For example they may be other programs, types or type constructors or even programming paradigms.
- genetic programming — (programming) (GP) A programming technique which extends the genetic algorithm to the domain of whole computer programs. In GP, populations of programs are genetically bred to solve problems. Genetic programming can solve problems of system identification, classification, control, robotics, optimisation, game playing, and pattern recognition. Starting with a primordial ooze of hundreds or thousands of randomly created programs composed of functions and terminals appropriate to the problem, the population is progressively evolved over a series of generations by applying the operations of Darwinian fitness proportionate reproduction and crossover (sexual recombination).