20-letter words containing r, e, i, d, n, t
- period of revolution — a rather large interval of time that is meaningful in the life of a person, in history, etc., because of its particular characteristics: a period of illness; a period of great profitability for a company; a period of social unrest in Germany.
- periodontal membrane — the collagenous, fibrous connective tissue between the cementum of the tooth and the alveolus.
- perpendicular gothic — the style of Gothic architecture in England during the 14th and 15th centuries, characterized by tracery having vertical lines, a four-centred arch, and fan vaulting
- personality disorder — any of a group of mental disorders characterized by deeply ingrained maladaptive patterns of behavior and personality style, which are usually recognizable as early as adolescence and are often lifelong in duration.
- phosphorus pentoxide — a white, deliquescent, crystalline powder, P 2 O 5 , that, depending upon the amount of water it absorbs, forms orthophosphoric acid, metaphosphoric acid, or pyrophosphoric acid, produced by the burning of phosphorus in dry air: used in the preparation of phosphoric acids, as a drying and dehydrating agent, and in organic synthesis.
- postal delivery zone — zone (def 10).
- postcode prescribing — the practice of prescribing more or less expensive and effective medical treatments to patients depending on where they live in a country, and which treatments their health board is willing and able to provide
- postnatal depression — a form of clinical depression that occurs in mothers after the birth of a baby
- potential difference — voltage
- pound cost averaging — a method of accumulating capital by investing a fixed sum in a particular security at regular intervals, in order to achieve an average purchase price below the arithmetic average of the market prices on the purchase dates
- predicate nominative — (in Latin, Greek, and certain other languages) a predicate noun or adjective in the nominative case.
- presidential primary — a direct primary for the selection of state delegates to a national party convention and the expression of preference for a U.S. presidential nominee.
- preventive detention — the holding of someone in jail or in an institution because he or she is regarded as a danger to the community.
- price discrimination — the practice of offering identical goods to different buyers at different prices, when the goods cost the same.
- price-dividend ratio — the ratio of the price of a share on a stock exchange to the dividends per share paid in the previous year, used as a measure of a company's potential as an investment
- pride of the morning — light mist or precipitation observed at sea in the morning and regarded as indicating a fine day.
- prince rupert's drop — a glass bead in the shape of a teardrop, a by-product of the glass-making process, formed by molten glass falling into water. The body of the drop can withstand great force, for example a hammer blow, but the whole will explode if the tail is nipped or the surface scored
- production agreement — a contract concerning the production or manufacture of something
- prohibited substance — a substance, such as a drug, etc, that is banned or forbidden by law or other authority
- proof of the pudding — the true value or quality of something, as seen when it is experienced, tried, or put to use: The proof of the pudding for a business is what customers say about it.
- proprietary medicine — a drug or agent manufactured and distributed under a trade name
- prosthetic dentistry — prosthodontics.
- public lending right — (in Britain) an act of Parliament that directs compensation to an author for the library loan of his or her book.
- quantum field theory — any theory in which fields are treated by the methods of quantum mechanics; each field can then be regarded as consisting of particles of a particular kind, which may be created and annihilated.
- radiation resistance — the resistive component of the impedance of a radio transmitting aerial that arises from the radiation of power
- radio interferometer — any of several different types of instrumentation designed to observe interference patterns of electromagnetic radiation at radio wavelengths: used in the discovery and measurement of radio sources in the atmosphere.
- rapid reaction force — a force that can be deployed swiftly to a site of conflict or potential conflict
- rapid transit system — a rail or other system providing rapid public transport
- read-eval-print loop — (language, LISP, programming) (REPL) A programming structure within LISP which repeatedly reads a form from the user, evaluates it, and displays the result. A read-eval-print loop forms the basis of the Top-Level shell that programmers of the LISP family of languages interact with. In many dialects of LISP a very simple REPL could be implemented as: (loop (print (eval (read)))). (2003-06-23)
- recursive definition — a definition consisting of a set of rules such that by repeated application of the rules the meaning of the definiendum is uniquely determined in terms of ideas that are already familiar.
- refuse disposal unit — a unit or part of a sink that disposes of waste food, etc, by grinding
- regional development — aid-giving to poorer areas or countries
- registered dietitian — a person who has fulfilled all the educational and examination requirements of the American Dietetic Association for recognition as a qualified nutrition specialist.
- relative deprivation — the perception of an unfair disparity between one's situation and that of others.
- reminder advertising — a type of advertising designed to remind customers that an existing or well-known product is still available and for sale
- rhineland-palatinate — a state in W Germany: formerly part of Rhine Province. 7655 sq. mi. (19,825 sq. km). Capital: Mainz.
- ring-necked parakeet — a small brightly coloured long-tailed tropical parrot, Psittacula krameri, often kept as a pet
- ring-necked pheasant — a gallinaceous Asian bird, Phasianus colchicus, having a white band around its neck, introduced into Great Britain, North America, and the Hawaiian Islands.
- roller-blind shutter — curtain shutter.
- ruby-crowned kinglet — an olive-gray, American kinglet, Regulus calendula, the male of which has an erectile, ruby crest.
- saint andrew's cross — a low evergreen shrub, Ascyrum hypericoides, native to temperate and subtropical America, having flowers in clusters of three: often cultivated.
- saint mary magdalene — a woman of Magdala (ˈmæɡdələ ) in Galilee whom Jesus cured of evil spirits (Luke 8:2) and who is often identified with the sinful woman of Luke 7:36–50. In Christian tradition she is usually taken to have been a prostitute. Feast day: July 22
- sarcastic fringehead — any fish of the genus Neoclinus, characterized by a row of fleshy processes on the head, as N. blanchardi (sarcastic fringehead) of California coastal waters.
- schizoid personality — sb with identity disorder
- schrodinger equation — the wave equation of nonrelativistic quantum mechanics. Also called Schrödinger wave equation. Compare wave equation (def 2).
- season ticket holder — a person who has a season ticket
- second international — an international association formed in 1889 in Paris, uniting socialistic groups or parties of various countries and holding international congresses from time to time: in 1923 it joined with the Vienna International to form the Labor and Socialist International. Compare international (def 6).
- secure accommodation — an institution where young offenders are kept in custody
- self-differentiating — to form or mark differently from other such things; distinguish.
- serra da mantiqueira — a mountain range in SE Brazil, running parallel to the coast. Highest point, 9140 feet (2785 meters).