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17-letter words containing a, c, e, n, t, o

  • fort walton beach — a city in NW Florida.
  • foucault pendulum — a pendulum that demonstrates the rotation of the earth by exhibiting an apparent change in its plane of oscillation.
  • 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.
  • 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].
  • fraternal society — a club or other association, usually of men, having a limited membership and devoted to professional, religious, charitable, or social activities.
  • freezer container — a rigid plastic container used to hold food that is to be frozen
  • 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.
  • full load current — A full load current is the largest current that a motor or other device is designed to carry under particular conditions.
  • functional change — a change in the grammatical function of a word, as in the use of the noun input as a verb or the noun fun as an adjective.
  • 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.
  • further education — adult education.
  • genealogical tree — family tree.
  • genetic algorithm — (GA) An evolutionary algorithm which generates each individual from some encoded form known as a "chromosome" or "genome". Chromosomes are combined or mutated to breed new individuals. "Crossover", the kind of recombination of chromosomes found in sexual reproduction in nature, is often also used in GAs. Here, an offspring's chromosome is created by joining segments choosen alternately from each of two parents' chromosomes which are of fixed length. GAs are useful for multidimensional optimisation problems in which the chromosome can encode the values for the different variables being optimised.
  • geneva convention — one of a series of international agreements, first made in Geneva, Switzerland, in 1864, establishing rules for the humane treatment of prisoners of war and of the sick, the wounded, and the dead in battle.
  • geomagnetic storm — magnetic storm.
  • get in on the act — If you get in on the act, you take part in or take advantage of something that was started by someone else.
  • get one's back up — the rear part of the human body, extending from the neck to the lower end of the spine.
  • gigaelectron volt — one billion electron-volts. Abbreviation: GeV, Gev.
  • give satisfaction — to satisfy
  • glove compartment — a compartment in the dashboard of an automobile for storing small items.
  • government action — intervention by a government, esp to influence financial markets
  • grandfather clock — a pendulum floor clock having a case as tall as or taller than a person; tall-case clock; long-case clock.
  • grandmother clock — a pendulum clock similar to a grandfather's clock but shorter.
  • grignard reaction — the reaction of a Grignard reagent with any of the numerous types of compounds with which it can combine, as alcohols, acids, aldehydes, ketones, or esters: used chiefly in organic synthesis.
  • haematocrystallin — Alternative form of hematocrystallin.
  • hamiltonian cycle — Hamiltonian problem
  • hanging committee — a group of people that selects and hangs works of art to exhibit
  • harmonic interval — an intervening period of time: an interval of 50 years.
  • helicopter parent — a style of child rearing in which an overprotective mother or father discourages a child's independence by being too involved in the child's life: In typical helicopter parenting, a mother or father swoops in at any sign of challenge or discomfort.
  • hemoconcentration — an increase in the concentration of cellular elements in the blood, resulting from loss of plasma.
  • henry cabot lodge — Henry Cabot, 1850–1924, U.S. public servant and author: senator 1893–1924.
  • heptanedioic acid — pimelic acid.
  • high-carbon steel — steel containing between 0.5 and 1.5 per cent carbon
  • histamine blocker — any of various substances that act at a specific receptor site to block certain actions of histamine.
  • homeland security — national defence
  • homogentisic acid — an intermediate compound in the metabolism of tyrosine and of phenylalanine, found in excess in the blood and urine of persons affected with alkaptonuria.
  • horatio kitchener — Horatio Herbert (1st Earl Kitchener of Khartoum and of Broome) 1850–1916, English field marshal and statesman.
  • housekeeping cart — A housekeeping cart is a large metal basket on wheels which is used by a cleaner in a hotel to move clean bed linen, towels, and cleaning equipment.
  • hubble's constant — the ratio of the recessional velocity of galaxies to their distance from the sun, with current measurements of its value ranging from 50 to 100 km/sec per megaparsec.
  • hyperbolic secant — a hyperbolic function that is the reciprocal of cosh; sech
  • hyperchlorination — Chemistry. to combine or treat with chlorine. to introduce chlorine atoms into an organic compound by an addition or substitution reaction.
  • icing on the cake — a sweet mixture, cooked or uncooked, for coating or filling cakes, cookies, and the like; icing.
  • icositetrahedrons — Plural form of icositetrahedron.
  • ignoratio elenchi — the fallacy of offering proof irrelevant to the proposition in question.
  • image recognition — (graphics, artificial intelligence)   The identification of objects in an image. This process would probably start with image processing techniques such as noise removal, followed by (low-level) feature extraction to locate lines, regions and possibly areas with certain textures. The clever bit is to interpret collections of these shapes as single objects, e.g. cars on a road, boxes on a conveyor belt or cancerous cells on a microscope slide. One reason this is an AI problem is that an object can appear very different when viewed from different angles or under different lighting. Another problem is deciding what features belong to what object and which are background or shadows etc. The human visual system performs these tasks mostly unconsciously but a computer requires skillful programming and lots of processing power to approach human performance.
  • immunotherapeutic — (immunology, medicine) Of a pharmaceutical, acting on the immune system to treat disease; used in immunotherapy.
  • impersonification — (archaic) the act of impersonating; impersonation.
  • improper fraction — a fraction having the numerator greater than the denominator.
  • in the background — behind the focus of attention
  • in the same canoe — of the same tribe
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