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17-letter words containing f, e, r, t, d

  • double quatrefoil — a charge having the form of a foil with eight leaves, used especially as the cadency mark of a ninth son.
  • double refraction — the separation of a ray of light into two unequally refracted, plane-polarized rays of orthogonal polarizations, occurring in crystals in which the velocity of light rays is not the same in all directions.
  • drop on the floor — To react to an error condition by silently discarding messages or other valuable data. "The gateway ran out of memory, so it just started dropping packets on the floor." Also frequently used of faulty mail and netnews relay sites that lose messages. See also black hole, bit bucket.
  • droplet infection — infection spread by airborne droplets of secretions from the nose, throat, or lungs.
  • edward fitzgerald — Edward, 1809–83, English poet: translator of drama and poetry, especially of Omar Khayyám.
  • electrified fence — a barrier that uses electric shocks to deter animals or people from crossing a boundary
  • ends of the earth — remote regions
  • enforcement order — an order by a court to force a person or organization to comply with a regulation or law
  • error of judgment — a wrong or bad decision
  • facts and figures — details; precise information
  • fade in (or out) — to appear or cause to appear (or disappear) gradually; make or become more (or less) distinct
  • faint-heartedness — lack of courage
  • fairness doctrine — a policy mandated by the Federal Communications Commission, requiring radio and television stations to grant equal time to a political candidate, group, etc., to present an opposing viewpoint to one already aired.
  • false bread-fruit — ceriman.
  • fancy dress party — a party at which the guests wear fancy dress
  • fear and loathing — (Hunter S. Thompson) A state inspired by the prospect of dealing with certain real-world systems and standards that are totally brain-damaged but ubiquitous - Intel 8086s, COBOL, EBCDIC, or any IBM machine except the Rios (also known as the RS/6000).
  • feathered friends — Birds are sometimes referred to as our feathered friends.
  • feint-ruled paper — writing paper with light horizontal lines printed across at regular intervals
  • fendalton tractor — a four-wheel drive recreational vehicle
  • finite difference — difference (def 9c).
  • first commandment — “Thou shalt have no other gods before me”: first of the Ten Commandments.
  • first-aid classes — classes which teach people how to give immediate medical help in an emergency
  • first-degree burn — a burned place or area: a burn where fire had ripped through the forest.
  • first-order logic — (language, logic)   The language describing the truth of mathematical formulas. Formulas describe properties of terms and have a truth value. The following are atomic formulas: True False p(t1,..tn) where t1,..,tn are terms and p is a predicate. If F1, F2 and F3 are formulas and v is a variable then the following are compound formulas: The "order" of a logic specifies what entities "For all" and "Exists" may quantify over. First-order logic can only quantify over sets of atomic propositions. (E.g. For all p . p => p). Second-order logic can quantify over functions on propositions, and higher-order logic can quantify over any type of entity. The sets over which quantifiers operate are usually implicit but can be deduced from well-formedness constraints. In first-order logic quantifiers always range over ALL the elements of the domain of discourse. By contrast, second-order logic allows one to quantify over subsets.
  • flagrante delicto — Law. in the very act of committing the offense.
  • follow the leader — a child's game in which players, one behind the other, follow a leader and must repeat or follow everything he or she does.
  • for all the world — the earth or globe, considered as a planet.
  • forced convection — Forced convection is convection in which the movement of fluid does not happen naturally but is helped by a device such as a fan or pump.
  • fore-and-aft sail — any of various sails, as jib-headed sails, gaff sails, lugsails, lateen sails, spritsails, staysails, and jibs, that do not set on yards and whose normal position, when not trimmed, is in a fore-and-aft direction amidships.
  • fort leonard wood — a military reservation and U.S. Army training center in SW Missouri, SW of Rolla.
  • foundation course — A foundation course is a course that you do at some colleges and universities in order to prepare yourself for a longer or more advanced course.
  • four-letter words — any of a number of short words, usually of four letters, considered offensive or vulgar because of their reference to excrement or sex.
  • fractal dimension — (mathematics)   A common type of fractal dimension is the Hausdorff-Besicovich Dimension, but there are several different ways of computing fractal dimension. Fractal dimension can be calculated by taking the limit of the quotient of the log change in object size and the log change in measurement scale, as the measurement scale approaches zero. The differences come in what is exactly meant by "object size" and what is meant by "measurement scale" and how to get an average number out of many different parts of a geometrical object. Fractal dimensions quantify the static *geometry* of an object. For example, consider a straight line. Now blow up the line by a factor of two. The line is now twice as long as before. Log 2 / Log 2 = 1, corresponding to dimension 1. Consider a square. Now blow up the square by a factor of two. The square is now 4 times as large as before (i.e. 4 original squares can be placed on the original square). Log 4 / log 2 = 2, corresponding to dimension 2 for the square. Consider a snowflake curve formed by repeatedly replacing ___ with _/\_, where each of the 4 new lines is 1/3 the length of the old line. Blowing up the snowflake curve by a factor of 3 results in a snowflake curve 4 times as large (one of the old snowflake curves can be placed on each of the 4 segments _/\_). Log 4 / log 3 = 1.261... Since the dimension 1.261 is larger than the dimension 1 of the lines making up the curve, the snowflake curve is a fractal. [sci.fractals FAQ].
  • frankenstein food — any foodstuff that has been genetically modified
  • freight forwarder — a person or firm that arranges to pick up or deliver goods on instructions of a shipper or a consignee from or to a point by various necessary conveyances and common carriers.
  • freund's adjuvant — a water-in-oil emulsion injected with immunogen (Freund's incomplete adjuvant) or with immunogen and killed mycobacteria (Freund's complete adjuvant) to enhance the immune response to the immunogen.
  • friend of dorothy — a male homosexual
  • from head to foot — all over one's body
  • from side to side — movement: back and forth
  • front-end payment — a payment required or incurred in advance of a project in order to get it under way
  • front-wheel drive — a drive system in which engine power is transmitted through the front wheels only.
  • full load current — A full load current is the largest current that a motor or other device is designed to carry under particular conditions.
  • further education — adult education.
  • fuss and feathers — an excessively elaborate or pretentious display; ostentation.
  • george whitefield — George, 1714–70, English Methodist evangelist.
  • go for the doctor — to make a great effort or move very fast, esp in a horse race
  • grandfather clock — a pendulum floor clock having a case as tall as or taller than a person; tall-case clock; long-case clock.
  • great-grandfather — a grandfather of one's father or mother.
  • greater forkbeard — a fish of the Phycidae family
  • grey-faced petrel — a dark-coloured New Zealand petrel, Pterodroma macroptera gouldi
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