21-letter words containing w, e, g, n
- a string to one's bow — If someone has more than one string to their bow, they have more than one ability or thing they can use if the first one they try is not successful.
- aerodynamic wave drag — the restraining force on a supersonic aircraft caused by shock waves.
- andrew message system — (messaging) A multimedia interface to electronic mail and bulletin boards, developed as part of the Andrew Project.
- as good as one's word — doing what one has undertaken or promised to do
- 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
- borrowing requirement — the amount that needs to be borrowed to fill a budget deficit
- bovine growth hormone — a growth hormone of cattle; esp., this hormone synthesized artificially and administered to beef cattle to increase growth rate and reduce fat and to dairy cows to increase milk production
- chickweed wintergreen — a primulaceous plant, Trientalis europaea, of N Europe and N Asia, having white flowers and leaves arranged in a whorl
- conway's game of life — (simulation) The first popular cellular automata based artificial life simulation. Life was invented by British mathematician John Horton Conway in 1970 and was first introduced publicly in "Scientific American" later that year. Conway first devised what he called "The Game of Life" and "ran" it using plates placed on floor tiles in his house. Because of he ran out of floor space and kept stepping on the plates, he later moved to doing it on paper or on a checkerboard and then moved to running Life as a computer program on a PDP-7. That first implementation of Life as a computer program was written by M. J. T. Guy and S. R. Bourne (the author of Unix's Bourne shell). Life uses a rectangular grid of binary (live or dead) cells each of which is updated at each step according to the previous state of its eight neighbours as follows: a live cell with less than two, or more than three, live neighbours dies. A dead cell with exactly three neighbours becomes alive. Other cells do not change. While the rules are fairly simple, the patterns that can arise are of a complexity resembling that of organic systems -- hence the name "Life". Many hackers pass through a stage of fascination with Life, and hackers at various places contributed heavily to the mathematical analysis of this game (most notably Bill Gosper at MIT, who even implemented Life in TECO!; see Gosperism). When a hacker mentions "life", he is more likely to mean this game than the magazine, the breakfast cereal, the 1950s-era board game or the human state of existence.
- devil's walking-stick — Hercules'-club (sense 1)
- devil's-walking-stick — Hercules-club (def 2).
- 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
- dumfries and galloway — a region in S Scotland. 2460 sq. mi. (6371 sq. km).
- flowering wintergreen — fringed polygala.
- forward exchange rate — the exchange rate of a currency to be delivered at a later date
- get down on something — to procure something, esp in advance of needs or in anticipation of someone else
- get in under the wire — to accomplish something with little time to spare
- get into the swing of — If you get into the swing of something, you become very involved in it and enjoy what you are doing.
- get on someone's wick — to cause irritation to a person
- go down like ninepins — (of each of a group of people) to become ill very easily and quickly
- go down the wrong way — (of food) to pass into the windpipe instead of the gullet
- got what one deserved — If you say that someone got what they deserved, you mean that they deserved the bad thing that happened to them, and you have no sympathy for them.
- government in waiting — a political group which is hoping to be elected to govern in the near future
- greenwich observatory — the national astronomical observatory of Great Britain, housed in a castle in E Sussex; formerly located at Greenwich.
- hazard warning device — an appliance fitted to a motor vehicle that operates the hazard lights
- heterogeneous network — (networking) A network running multiple network layer protocols such as DECnet, IP, IPX, XNS.
- it takes two to tango — If you say it takes two or it takes two to tango, you mean that a situation or argument involves two people and they are both therefore responsible for it.
- jewish defense league — an organization of militant Jewish activists, founded in 1968 in the U.S. to combat anti-Semitism and defend Jewish interests worldwide. Abbr.: JDL.
- jump on the bandwagon — do sth because it is popular
- know someone by sight — If you know someone by sight, you can recognize them when you see them, although you have never met them and talked to them.
- knowledge engineering — the practical application of developments in the field of computer science concerned with artificial intelligence.
- 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).
- let well enough alone — separate, apart, or isolated from others: I want to be alone.
- madagascar periwinkle — a plant, Catharanthus roseus (or Vinca rosea), cultivated for its glossy foliage and pink or white flowers.
- 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.
- member of the wedding — a novel (1946) and play (1950) by Carson McCullers.
- narrow-angle glaucoma — Ophthalmology. angle-closure glaucoma. See under glaucoma.
- network filing system — (spelling) Misnomer for Network File System.
- new general catalogue — NGC.
- north east new guinea — the NE part of the former Australian Territory of New Guinea; now part of Papua New Guinea.
- portuguese man-of-war — any of several large, oceanic hydrozoans of the genus Physalia, having a large, bladderlike structure with a saillike crest by which they are buoyed up and from which dangle tentacles with stinging cells.
- queen's-pawn openings — a class of chess openings in which the pawn in front of the queen is advanced two squares on the first move.
- ring down the curtain — to lower the curtain at the end of a theatrical performance
- safe in the knowledge — If you do something safe in the knowledge that something else is the case, you do the first thing confidently because you are sure of the second thing.
- sail against the wind — to sail a course that slants slightly away from the true direction of the wind; sail closehauled
- salam-weinberg theory — the electroweak theory.
- sovereign wealth fund — an investment fund created using the financial assets of a national government
- submerged arc welding — a type of heavy electric-arc welding using mechanically fed bare wire with the arc submerged in powdered flux to keep out oxygen
- swim against the tide — to resist prevailing opinion
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