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17-letter words containing f, e, n, i, s

  • fourier transform — a mapping of a function, as a signal, that is defined in one domain, as space or time, into another domain, as wavelength or frequency, where the function is represented in terms of sines and cosines.
  • 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].
  • francis ferdinand — 1863–1914, archduke of Austria: heir apparent to the thrones of Austria and Hungary whose assassination precipitated the outbreak of World War I (nephew of Francis Joseph I).
  • frankenstein food — any foodstuff that has been genetically modified
  • fraternal society — a club or other association, usually of men, having a limited membership and devoted to professional, religious, charitable, or social activities.
  • freight insurance — insurance paid on goods in transport
  • french somaliland — a former name of Djibouti (def 1).
  • frostbite sailing — the sport of sailing in temperate latitudes during the winter despite cold weather.
  • fulgencio batista — Fulgencio [fool-hen-syaw] /fulˈhɛn syɔ/ (Show IPA), (Fulgencio Batista y Zaldívar) 1901–73, Cuban military leader: dictator of Cuba 1934–40; president 1940–44, 1952–59.
  • functional isomer — any of several structural isomers that have the same molecular formula but with the atoms connected in different ways and therefore falling into different functional groups.
  • gaseous diffusion — the passage of gas through microporous barriers, a technique used for isotope separation, especially in the preparation of fuel for nuclear reactors.
  • gibbs free energy — the thermodynamic function of a system that is equal to its enthalpy minus the product of its absolute temperture and entropy: a decrease in the function is equal to the maximum amount of work available exclusive of that due to pressure times volume change during a reversible, isothermal, isobaric process.
  • give satisfaction — to satisfy
  • grain of paradise — Usually, grains of paradise. one of the pungent, peppery seeds of an African plant, Aframomum melegueta, of the ginger family, used to strengthen cordials and in veterinary medicine.
  • half-round chisel — a cold chisel with a semicircular cutting edge used for making narrow channels
  • hall of residence — Halls of residence are buildings with rooms or flats, usually built by universities or colleges, in which students live during the term.
  • have feelings for — to be emotionally or sexually attracted to
  • have it in for sb — If someone has it in for you, they dislike you and try to cause problems for you.
  • homo floresiensis — a possible species of very small, primitive human: its fossils were discovered on the Indonesian island of Flores in 2003.
  • image intensifier — any of various devices for amplifying the intensity of an optical image, sometimes used in conjunction with an image converter
  • immunofluorescent — Of, pertaining to, or using immunofluorescence.
  • impersonification — (archaic) the act of impersonating; impersonation.
  • in double figures — An amount or number that is in single figures is between zero and nine. An amount or number that is in double figures is between ten and ninety-nine. You can also say, for example, that an amount or number is in three figures when it is between one hundred and nine hundred and ninety-nine.
  • in forma pauperis — as a poor person; i.e. without paying court costs
  • in one fell swoop — to sweep through the air, as a bird or a bat, especially down upon prey.
  • in someone's face — the front part of the head, from the forehead to the chin.
  • in the process of — If you are in the process of doing something, you have started to do it and are still doing it.
  • inclusive fitness — the fitness of an individual organism as measured in terms of the survival and reproductive success of its kin, each relative being valued according to the probability of shared genetic information, an offspring or sibling having a value of 50 percent and a cousin 25 percent.
  • indefatigableness — The state of being indefatigable.
  • inefficaciousness — Lack of efficacy.
  • infinitive clause — a clause containing an infinitive as its main or only verb form, as to speak clearly in Try to speak clearly.
  • instrument flying — the control and navigation of an aircraft by reference to its gauges, with no or only limited visual reference outside the cockpit.
  • intensive farming — battery rearing of animals
  • interconfessional — common to or occurring between churches having different confessions.
  • interfenestration — a space between two windows.
  • interprofessional — following an occupation as a means of livelihood or for gain: a professional builder.
  • intraspecifically — Between individuals of the same species.
  • irons in the fire — If someone has a lot of irons in the fire, they are involved in several different activities or have several different plans.
  • isherwood framing — a system for framing steel vessels in which light, closely spaced, longitudinal frames are connected by heavy, widely spaced transverse frames with deep webs.
  • island of the sun — Sicily: the island where Helius kept his oxen.
  • it's your funeral — If someone says to you 'It's your funeral', they think your decision or your actions will have bad consequences for you, but they are unwilling to interfere.
  • job specification — a detailed description of the qualifications, skills, and experience required for a particular post of employment
  • judgment of paris — the decision by Paris to award Aphrodite the golden apple of discord competed for by Aphrodite, Athena, and Hera.
  • league of nations — an international organization to promote world peace and cooperation that was created by the Treaty of Versailles (1919): dissolved April 1946.
  • least fixed point — (mathematics)   A function f may have many fixed points (x such that f x = x). For example, any value is a fixed point of the identity function, (\ x . x). If f is recursive, we can represent it as f = fix F where F is some higher-order function and fix F = F (fix F). The standard denotational semantics of f is then given by the least fixed point of F. This is the least upper bound of the infinite sequence (the ascending Kleene chain) obtained by repeatedly applying F to the totally undefined value, bottom. I.e. fix F = LUB {bottom, F bottom, F (F bottom), ...}. The least fixed point is guaranteed to exist for a continuous function over a cpo.
  • life imprisonment — long-term prison sentence
  • line of scrimmage — an imaginary line parallel to the goal lines that passes from one sideline to the other through the point of the football closest to the goal line of each team.
  • loose-leaf binder — a hard cover with metal rings inside which is used to hold loose pieces of paper
  • luminous efficacy — the quotient of the luminous flux of a radiation and its corresponding radiant flux
  • magnesium sulfate — a white, water-soluble salt, MgSO 4 , used chiefly in medicine and in the processing of leather and textiles.
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