21-letter words containing a, n, t, e, g, r
- rectangular hyperbola — a hyperbola with perpendicular asymptotes
- referential integrity — (database) A collection of properties which should be possessed by data in a relational database. For example, in a database of family members, if we enter A as a spouse of B, we should also enter B as a spouse of A. Similarly, if we remove one end of the relationship we should also remove the other.
- registration document — a document giving identification details of a motor vehicle, including its manufacturer, date of registration, engine and chassis numbers, and owner's name
- replacement algorithm — The method used to determine which entry in an associative cache to flush to main memory when it is desired to cache a new block of data. The "least recently used" algorithm flushed the block which has not been accessed for the longest time. A random replacement algorithm picks any block with equal probability.
- right-angled triangle — a triangle one angle of which is a right angle
- ring down the curtain — to lower the curtain at the end of a theatrical performance
- ring-around-the-rosey — a children's game in which the players sing while going around in a circle and squat when the lyrics “all fall down” are sung.
- rolling in the aisles — (of an audience) overcome with laughter
- rutherford scattering — the scattering of an alpha particle through a large angle with respect to the original direction of motion of the particle, caused by an atom (Rutherford atom) with most of the mass and all of the positive electric charge concentrated at a center or nucleus.
- salam-weinberg theory — the electroweak theory.
- san gabriel mountains — a mountain range in S California, N of Los Angeles. Highest peak, San Antonio Peak, 10,080 feet (3072 meters).
- satisficing behaviour — the form of behaviour demonstrated by firms who seek satisfactory profits and satisfactory growth rather than maximum profits
- schlieren photography — a type of photography which records schlieren
- seeing/hearing things — If you say that someone is seeing or hearing things, you mean that they believe they are seeing or hearing something that is not really there.
- serbia and montenegro — a former country in SE Europe, consisting of the republics of Serbia and Montenegro; replaced the Federal Republic of Yugoslavia in 2003, and dissolved in 2006 following Montenegro’s decision to secede
- signal-to-noise ratio — the ratio of one parameter, such as power of a wanted signal to the same parameter of the noise at a specified point in an electronic circuit, etc
- simple actor language — (language) (SAL) A minimal actor language, used for teaching in:
- sing a different tune — a succession of musical sounds forming an air or melody, with or without the harmony accompanying it.
- single parent benefit — a form of government funded financial assistance paid to single parents
- single spanish burton — a tackle having a runner as well as the fall supporting the load, giving a mechanical advantage of three, neglecting friction.
- snap one's fingers at — any of the terminal members of the hand, especially one other than the thumb.
- sovereign wealth fund — an investment fund created using the financial assets of a national government
- spark ignition engine — A spark ignition engine is an engine running on the Otto cycle.
- spin angular momentum — to make (yarn) by drawing out, twisting, and winding fibers: Pioneer women spun yarn on spinning wheels.
- split-finger fastball — a type of fastball that sinks abruptly as it nears home plate, thrown with the grip used for a forkball
- stem-and-leaf diagram — a histogram in which the data points falling within each class interval are listed in order
- strategic air command — a U.S. Air Force command charged with intercontinental air strikes, especially nuclear attacks.
- suction and curettage — a technique involving extraction of the fetus through a suction tube, used to perform abortions during the early stages of pregnancy.
- supergranulation cell — one of a number of large convection cells in the photosphere and chromosphere of the sun, each having a diameter of 10,000–20,000 miles (16,000–32,000 km) and lasting longer than a day.
- surface friction drag — the part of the drag on a body moving through a fluid that is dependent on the nature of the surface of the body
- take one's finger out — stop delaying or procrastinating
- tape operating system — (operating system) (TOS) An IBM operating system for System 360, used in the early days around 1965 to support the IBM 360 model 30 et al. TOS was a predecessor to IBM's Disk Operating System. TOS died out really early as disks such as the 2311 and 2314 became common with the IBM 360 whereas thet had been a real luxury on the IBM 7090.
- teleological argument — the argument purporting to prove the existence of God from empirical facts, the premise being that the universe shows evidence of order and hence design
- the acting profession — actors considered as a group
- the moral high ground — If you say that someone has taken the moral high ground, you mean that they consider that their policies and actions are morally superior to the policies and actions of their rivals.
- the shipping forecast — a radio broadcast made by the BBC of weather reports and forecasts for the seas around the British Isles
- threatening behaviour — intimidation or intentional behaviour that causes another person to fear injury or harm
- three-quarter binding — a binding in which the material used for the back extends further over the covers than in half binding.
- tide-generating force — the difference between the force of gravity exerted by the moon or the sun on a particle of water in the ocean and that exerted on an equal mass of matter at the centre of the earth. The lunar tide-generating forces are about 2.2 times greater than are the solar ones
- to be arrayed against — to be opposed to
- to get into high gear — if people or an activity go into high gear, moves into high gear, etc, people do what they were doing more intensely, or the activity becomes more intense
- to have green fingers — If someone has green fingers, they are very good at gardening and their plants grow well.
- to lay something bare — If you lay something bare, you uncover it completely so that it can then be seen.
- topgallant forecastle — a partial weather deck on top of a forecastle superstructure; forecastle deck.
- trades union congress — The Trades Union Congress in Britain is the same as the TUC.
- transport segregation — Transport segregation is when particles from a mixture separate because the mixture vibrates while it is being moved.
- traveling salesperson — a representative of a business firm who travels in an assigned territory soliciting orders for a company's services.
- tubercular meningitis — an infection of the membranes of the central nervous system caused by the bacterium Mycobacterium tuberculosis; features can include fever, headache, and coma
- vertically challenged — short in stature.
- vladivostok agreement — a preliminary arms control accord concluded by Soviet leader Leonid Brezhnev and U.S. President Gerald Ford in Vladivostok, U.S.S.R., in December 1974.