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18-letter words containing d, r, e, a, i

  • quadratic equation — an equation containing a single variable of degree 2. Its general form is ax 2 + bx + c = 0, where x is the variable and a, b, and c are constants (a ≠ 0).
  • quarry-tiled floor — a floor covered with square or diamond-shaped unglazed floor tiles
  • quartz-iodine lamp — a type of tungsten-halogen lamp containing small amounts of iodine and having a quartz envelope, operating at high temperature and producing an intense light for use in car headlamps, etc
  • quinacrine mustard — a nitrogen mustard derived from mepacrine and used as a stain for chromosomes
  • racially motivated — motivated by (the hate or prejudice of) someone's race
  • radiant efficiency — the ratio of the power emitted by a source of radiation to the power consumed by it
  • radiation exposure — exposure to radiant energy or to the particles emitted in the transfer of radiant energy, esp the particles and gamma rays emitted in nuclear decay; exposure to radioactive substances
  • radiation pressure — the pressure exerted on a surface by electromagnetic radiation or by sound waves.
  • radiation sickness — sickness caused by irradiation with x-rays or other nuclear radiation as a result of therapeutic treatment, accidental exposure, or a nuclear bomb explosion and characterized by nausea, vomiting, headache, cramps, diarrhea, loss of hair and teeth, destruction of white blood cells, and prolonged hemorrhage.
  • radical empiricism — (in the philosophy of William James) the doctrine that the only proper subject matter of philosophy is that which can be defined in terms of experience, and that relations are a part of experience.
  • radical expression — an expression in which radical signs appear.
  • radio range beacon — a radio transmitter that utilizes two or more directional antennas and transmits signals differing with direction, permitting a flier receiving a signal to determine his or her approximate bearing from the transmitter without a radio compass.
  • radioactive dating — any method of determining the age of earth materials or objects of organic origin based on measurement of either short-lived radioactive elements or the amount of a long-lived radioactive element plus its decay product.
  • radioactive series — a succession of elements initiated in the radioactive decay of a parent, as thorium or uranium, each of which decays into the next until a stable element, usually lead, is produced.
  • radiometric dating — any method of determining the age of earth materials or objects of organic origin based on measurement of either short-lived radioactive elements or the amount of a long-lived radioactive element plus its decay product.
  • rapid eye movement — rapidly shifting, continuous movements of the eyes beneath closed lids during the stage of sleep characterized by dreaming.
  • rear its ugly head — the upper part of the body in humans, joined to the trunk by the neck, containing the brain, eyes, ears, nose, and mouth.
  • reduction strategy — (theory)   An algorithm for deciding which redex(es) to reduce next. Different strategies have different termination properties in the presence of recursive functions or values. See string reduction, normal order reduction, applicative order reduction, parallel reduction
  • refrigerated lorry — a lorry which is chilled in the back as for storing food
  • reggio di calabria — a seaport in S Italy, on the Strait of Messina: almost totally destroyed by an earthquake 1908.
  • registered charity — official aid organization
  • registered company — a company which has officially registered its business
  • reinforced plastic — plastic with fibrous matter, such as carbon fibre, embedded in it to confer additional strength
  • report an accident — If you report an accident, you inform an insurer or the police or other authorities that an accident has occurred.
  • rescind a contract — If an insurer rescinds an insurance contract, it terminates it because facts have been concealed or misrepresented by the proposer.
  • residential school — (in Canada) a boarding school maintained by the Canadian government for Indian and Inuit children from sparsely populated settlements
  • residual magnetism — remanence.
  • resistance plasmid — any of a group of bacterial plasmids carrying genetic information that provide resistance to antibiotic drugs: some resistance plasmids are able to transfer themselves, and hence resistance, during conjugation
  • resistance welding — welding utilizing pressure and heat that is generated in the pieces to be welded by resistance to an electric current.
  • restoration comedy — English comedy of the period of the Restoration, stressing manners and social satire.
  • restraint of trade — action tending to interrupt the free flow of goods and services, as by price fixing and other practices that have the effect of reducing competition.
  • retail price index — The retail price index is a list of the prices of typical goods which shows how much the cost of living changes from one month to the next.
  • retrograde amnesia — a memory disorder characterized by an inability to remember events or experiences that occurred before a significant point in time.
  • rheims-douay bible — Douay Bible.
  • rhode island white — one of a dual-purpose American breed of chickens having white feathers and a rose comb.
  • rhodes scholarship — one of a number of scholarships at Oxford University, established by the will of Cecil Rhodes, for selected students (Rhodes scholars) from the British Commonwealth and the United States.
  • richard p. feynman — (person, computing, architecture)   /fayn'mn/ 1918-1988. A US physicist, computer scientist and author who graduated from Massachusetts Institute of Technology and Princeton. Feynmane was a key figure in helping Oppenheimer and team develop atomic bomb. In 1950 he became a professor at Caltech and in 1965 became Nobel Prize Laureate in Physics for QED (quantum electrodynamics). He was a primary figure in "solving" the Challenger disaster O-ring problem. He "rediscovered" the former Soviet Socialist Republic of Tuva. The 2001 film "Infinity" about Feynman's early life featured Matthew Broderick and Patricia Arquette. In 2001, "QED", a play about Feynman's life featuring Alan Alda opened.
  • richard p. gabriel — Richard Gabriel
  • ride a hobby horse — an activity or interest pursued for pleasure or relaxation and not as a main occupation: Her hobbies include stamp-collecting and woodcarving.
  • risk based testing — (testing)   Testing based on identification of potential risks (or "candidate risks"), which should be analysed by the project stakeholder or which might appear during the project's development.
  • russian federation — a republic extending from E Europe to N and W Asia. 6,593,000 sq. mi. (17,076,000 sq. km). Capital: Moscow.
  • saint bernard pass — either of two passes over the Alps: the Great St Bernard Pass 2472 m (8110 ft) high, east of Mont Blanc between Italy and Switzerland, or the Little St Bernard Pass 2157 m (7077 ft) high, south of Mont Blanc between Italy and France
  • saint george's day — April 23, celebrated in parts of the British Commonwealth in honor of the patron saint of Britain and especially in New Zealand as a bank holiday.
  • saint john's bread — carob (def 2).
  • sao joao de meriti — a city in SE Brazil, NW of Rio de Janeiro.
  • saturated solution — A saturated solution is a solution in which there is so much solute that if there was any more, it would not dissolve.
  • schofield barracks — a town on central Oahu, in central Hawaii.
  • scholarship holder — a person who, because of academic merit, receives financial aid for their studies
  • science dictionary — a specialized dictionary covering terms in the life, earth, and physical sciences, such as the online Science Dictionary on Dictionary.com. A science dictionary includes many technical terms with precise, specialized meanings—terms not normally found in general dictionaries—making it an invaluable resource for students and professionals in scientific fields.
  • scissors-and-paste — designating or of a piece of writing that has been assembled from a variety of sources rather than by original research, often in a hasty or uninspired way
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