20-letter words containing p, o, g, r
- pythagoras's theorem — (mathematics) The theorem of geometry, named after Pythagoras, of Samos, Ionia, stating that, for a right-angled triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the other two sides. I.e. if the longest side has length A and the other sides have lengths B and C (in any units), A^2 = B^2 + C^2 (2004-02-12)
- 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
- reflecting 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.
- 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
- retinitis pigmentosa — degeneration of the retina manifested by night blindness and gradual loss of peripheral vision, eventually resulting in tunnel vision or total blindness.
- revolving presidency — a form of presidency in which the president and vice-president, or countries or bodies acting as such, switch roles after a set period and then back again and so on
- royal leamington spa — a city in Warwickshire, central England: health resort.
- rub up the wrong way — to arouse anger (in); annoy
- satellite photograph — a photograph taken by an artificial satellite from space
- semiautobiographical — pertaining to or being a fictionalized account of an author's own life.
- 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
- sing for your supper — If someone has to sing for their supper, they have to do a job before they are allowed to do something they want to do.
- single point mooring — monobuoy.
- slip through the net — If criminals slip through the net, they avoid being caught by the system or trap that was meant to catch them.
- soke of peterborough — a former administrative unit of E central England, generally considered part of Northamptonshire or Huntingdonshire: absorbed into Cambridgeshire in 1974
- special patrol group — a former police unit tasked with counter terrorism in the Royal Ulster Constabulary
- state highway patrol — a state's road traffic police
- string correspondent — stringer (def 6).
- synoptic meteorology — a branch of meteorology analyzing data collected simultaneously over a wide region, for the purpose of weather forecasting.
- television programme — a programme broadcast on television
- the legal profession — the profession of law
- the thinking process — thought; the activity of thinking
- 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 put sth to rights — to make something consistent with justice, correctness, or orderly arrangement
- 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).
- triple witching hour — the last hour of trading on the New York Stock Exchange on the four Fridays each year when stock options, stock index futures, and options on such futures simultaneously expire: regarded as a time of extreme volatility in trading.
- unemployment figures — statistics relating to the number of people who are out of work
- upmail tricia prolog — ftp://ftp.csd.uu.se/pub/Tricia/README. E-mail: <[email protected]>.
- video graphics array — (hardware) (VGA) A display standard for IBM PCs, with 640 x 480 pixels in 16 colours and a 4:3 aspect ratio. There is also a text mode with 720 x 400 pixels. IBM technical references define the *product name* of their original VGA display board as "Video Graphics Array", in contrast to the preceding boards, the "Color Graphics Adapter" (CGA) and "Enhanced Graphics Adapter" (EGA). See also Super Video Graphics Adapter.
- 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.