21-letter words containing t, w, i, r, l, n
- applications software — application program
- astronomical twilight — the period of time during which the sun is 18° below the horizon
- blackburn with darwen — a unitary authority in NW England, in Lancashire. Pop: 139 800 (2003 est). Area: 137 sq km (53 sq miles)
- blow one's brains out — to kill oneself by shooting oneself in the head
- boiling-water reactor — a nuclear reactor using water as coolant and moderator, steam being produced in the reactor itself: enriched uranium oxide cased in zirconium is the fuel
- british anti-lewisite — a colorless, oily, viscous liquid, C 3 H 8 OS 2 , originally developed as an antidote to lewisite and now used in treating bismuth, gold, mercury, and arsenic poisoning.
- collimator viewfinder — a type of viewfinder in a camera
- differential windlass — a pair of hoisting drums of different diameter turning at the same rate, such that a pulley suspended below them on a line wound on the larger drum and unwound from the smaller drum is raised with mechanical advantage.
- direct inward dialing — (communications) (DID) A service offered by telephone companies which allows the last 3 or 4 digits of a phone number to be transmitted to the destination exchange. For example, a company could have 10 incoming lines, all with the number 234 000. If a caller dials 234 697, the call is sent to 234 000 (the company's exchange), and the digits 697 are transmitted. The company's exchange then routes the call to extension 697. This gives the impression of 1000 direct dial lines, whereas in fact there are only 10. Obviously, only 10 at a time can be used. This system is also used by fax servers. Instead of an exchange at the end of the 234 000 line, a computer running fax server software and fax modem cards uses the last three digits to identify the recipient of the fax. This allows 1000 people to have their own individual fax numbers, even though there is only one 'fax machine'.
- distant early warning — a US radar detection system to warn of missile attack
- electronic typewriter — a keyboard machine for writing electromechanically in characters resembling print
- financial underwriter — A financial underwriter is an insurance employee working in financial underwriting.
- flowering wintergreen — fringed polygala.
- help a person on with — to assist a person in the putting on of (clothes)
- infant welfare clinic — a medical facility that specializes in the health and well-being of young babies
- intracoastal waterway — a mostly inland water route, partly natural and partly artificial, extending 1550 miles (2500 km) along the Atlantic coast from Boston to Florida Bay (Atlantic Intracoastal Waterway) and 1116 miles (1800 km) along the Gulf coast from Carrabelle, Fla., to Brownsville, Tex. (Gulf Intracoastal Waterway) constructed to protect small craft from the hazards of the open sea.
- law of thermodynamics — any of three principles variously stated in equivalent forms, being the principle that the change of energy of a thermodynamic system is equal to the heat transferred minus the work done (first law of thermodynamics) the principle that no cyclic process is possible in which heat is absorbed from a reservoir at a single temperature and converted completely into mechanical work (second law of thermodynamics) and the principle that it is impossible to reduce the temperature of a system to absolute zero in a finite number of operations (third law of thermodynamics)
- leaning tower of pisa — a round, marble campanile in Pisa, Italy, begun in 1174 and now 17 feet (5.2 meters) out of the perpendicular in its height of 179 feet (54 meters).
- lost in the underflow — (jargon) Too small to be worth considering; more specifically, small beyond the limits of accuracy or measurement. This is a reference to "floating point underflow". The Hacker's Jargon File claimed that it is also a pun on "undertow" (a kind of fast, cold current that sometimes runs just offshore and can be dangerous to swimmers). "Well, sure, photon pressure from the stadium lights alters the path of a thrown baseball, but that effect gets lost in the underflow". Compare epsilon, epsilon squared; see also overflow bit.
- maidenhair spleenwort — an evergreen fern, Asplenium trichomanes, abundant in woody areas of the North Temperate Zone, having thickly clustered fronds.
- mechanical weathering — any of the various weathering processes that cause physical disintegration of exposed rock without any change in the chemical composition of the rock: Collision between rock surfaces can cause mechanical weathering.
- model-view-controller — (programming) (MVC) A way of partitioning the design of interactive software; a software architecture pattern. The "model" is the internal workings of the program (the data objects and algorithms), the "view" is how the user sees the state of the model and the "controller" is how the user changes the state or provides input. MVC was the original kind of what is now sometimes called an MV* pattern. Trygve Reenskaug introduced it into Smalltalk-76 while visiting Xerox PARC in the 1970s.
- motherwell and wishaw — a burgh in the Motherwell district, in S Scotland.
- neither fish nor fowl — any of various cold-blooded, aquatic vertebrates, having gills, commonly fins, and typically an elongated body covered with scales.
- network filing system — (spelling) Misnomer for Network File System.
- network time protocol — (NTP) A protocol built on top of TCP/IP that assures accurate local timekeeping with reference to radio, atomic or other clocks located on the Internet. This protocol is capable of synchronizing distributed clocks within milliseconds over long time periods. It is defined in STD 12, RFC 1119.
- new year's resolution — If you make a New Year's resolution, you make a decision at the beginning of a year to start doing something or to stop doing something.
- nuclear power station — a station or plant where nuclear energy is converted into heat, electricity, etc
- oil-in-water emulsion — An oil-in-water emulsion is a mixture in which an oily medicine is dispersed in water or other liquid.
- redwood national park — a national park in N California: redwood forest with some of the world's tallest trees. 172 sq. mi. (445 sq. km).
- roll with the punches — a thrusting blow, especially with the fist.
- saint lawrence seaway — a series of channels, locks, and canals between Montreal and the mouth of Lake Ontario, a distance of 182 miles (293 km), enabling most deep-draft vessels to travel from the Atlantic Ocean, up the St. Lawrence River, to all the Great Lakes ports: developed jointly by the U.S. and Canada.
- salam-weinberg theory — the electroweak theory.
- santa cruz water lily — a South American aquatic plant, Victoria cruziana, of the water lily family, having floating leaves from 2–5 feet (0.6–1.5 meters) and deep pink or red flowers.
- set the world on fire — the earth or globe, considered as a planet.
- slatwall merchandiser — A slatwall merchandiser is a three-dimensional display unit with grooves cut into its surface into which metal hanging rails can be fixed at various heights.
- sovereign wealth fund — an investment fund created using the financial assets of a national government
- the middle of nowhere — remote place
- thermal power station — a power station in which heat is converted into electricity
- to lay down your life — If someone lays down their life for another person, they die so that the other person can live.
- to let your hair down — If you let your hair down, you relax completely and enjoy yourself.
- to throw in the towel — If you throw in the towel, you stop trying to do something because you realize that you cannot succeed.
- traffic control tower — an elevated structure for the visual observation and control of the air and ground traffic at an airport
- twenty-two metre line — one of two lines on a rugby pitch which are twenty-two metres from the goal-line
- warm silence software — A small company run by(?) Robin Watts, producing software for the Acorn Archimedes.
- watenstedt-salzgitter — former name of Salzgitter.
- weinberg-salam theory — electroweak theory.
- well-ordering theorem — the theorem of set theory that every set can be made a well-ordered set.
- west university place — a city in SE Texas.
- wet collodion process — a photographic process, in common use in the mid-19th century, employing a glass photographic plate coated with iodized collodion and dipped in a silver nitrate solution immediately before use.
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