20-letter words containing p, a, n, t, g, r
- quantum cryptography — a method of coding information based on quantum mechanics, which is said to be unbreakable
- real-time processing — data-processing by a computer which receives constantly changing data, such as information relating to air-traffic control, travel booking systems, etc, and processes it sufficiently rapidly to be able to control the source of the data
- reciprocating engine — an engine in which one or more pistons move backwards and forwards inside a cylinder or cylinders
- refracting telescope — an optical instrument for making distant objects appear larger and therefore nearer. One of the two principal forms (refracting telescope) consists essentially of an objective lens set into one end of a tube and an adjustable eyepiece or combination of lenses set into the other end of a tube that slides into the first and through which the enlarged object is viewed directly; the other form (reflecting telescope) has a concave mirror that gathers light from the object and focuses it into an adjustable eyepiece or combination of lenses through which the reflection of the object is enlarged and viewed. Compare radio telescope.
- regional development — aid-giving to poorer areas or countries
- repurchase agreement — a contract between a dealer, as a bank, and an investor, whereby the investor purchases securities with the promise that they will be bought back by the dealer on a designated date, for which the investor receives a fixed return.
- retinitis pigmentosa — degeneration of the retina manifested by night blindness and gradual loss of peripheral vision, eventually resulting in tunnel vision or total blindness.
- 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.
- royal leamington spa — a city in Warwickshire, central England: health resort.
- rub up the wrong way — to arouse anger (in); annoy
- serve a person right — to pay a person back, esp for wrongful or foolish treatment or behaviour
- sex change operation — a surgical operation designed to change a person's physical sexual characteristics to those of the opposite sex
- st.-germain-des-pres — an area in Paris, on the Left Bank.
- star spangled banner — Stars and Stripes.
- star-spangled banner — Stars and Stripes.
- supplementary angles — either of two angles that added together produce an angle of 180°.
- television programme — a programme broadcast on television
- temperature gradient — rate of change of temperature with distance.
- the hearing impaired — people whose hearing is partially defective
- the legal profession — the profession of law
- to bring up the rear — If a person or vehicle is bringing up the rear, they are the last person or vehicle in a moving line of them.
- to spread your wings — If you spread your wings, you do something new and rather difficult or move to a new place, because you feel more confident in your abilities than you used to and you want to gain wider experience.
- toxemia of pregnancy — an abnormal condition of pregnancy characterized by hypertension, fluid retention, edema, and the presence of protein in the urine.
- transposed conjugate — adjoint (def 2).
- tubing head pressure — The tubing head pressure is the pressure on the tubing, which is measured at the wellhead.
- winter olympic games — an international contest of winter sports, esp skiing, held every four years
- working relationship — a relationship with a colleague, boss or employee
- working-capital fund — a fund established to finance operating activities in an industrial enterprise.