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15-letter words containing t, o, r, s

  • externalisation — Alternative spelling of externalization.
  • extraordinaries — things that exceed the usual order, kind, or method
  • fabric softener — a substance added to fabrics during laundering to make them puffier and softer.
  • factor analysis — the use of one of several methods for reducing a set of variables to a lesser number of new variables, each of which is a function of one or more of the original variables.
  • faculty advisor — a member of the faculty who gives advice to students
  • fairy footsteps — heavy footsteps
  • faithworthiness — the quality of being faithworthy
  • fallout shelter — protective bunker
  • false buckthorn — a spiny shrub or small tree, Bumelia lanuginosa, of the sapodilla family, native to the southern U.S., having gummy, milky sap and white, bell-shaped flowers and yielding a hard, light-brown wood.
  • false miterwort — foamflower.
  • familiarisation — Alternative spelling of familiarization.
  • fantasmagorical — Alternative form of phantasmagorical.
  • fauntleroy suit — a formal outfit for a boy composed of a hip-length jacket and knee-length pants, often in black velvet, and a wide, lacy collar and cuffs, usually worn with a broad sash at the waist and sometimes a large, loose bow at the neck, popular in the late 19th century.
  • feast or famine — characterized by alternating, extremely high and low degrees of prosperity, success, volume of business, etc.: artists who lead a feast-or-famine life.
  • feast-or-famine — characterized by alternating, extremely high and low degrees of prosperity, success, volume of business, etc.: artists who lead a feast-or-famine life.
  • fencepost error — 1. (Rarely "lamp-post error") A problem with the discrete equivalent of a boundary condition, often exhibited in programs by iterative loops. From the following problem: "If you build a fence 100 feet long with posts 10 feet apart, how many posts do you need?" (Either 9 or 11 is a better answer than the obvious 10). For example, suppose you have a long list or array of items, and want to process items m through n; how many items are there? The obvious answer is n - m, but that is off by one; the right answer is n - m + 1. The "obvious" formula exhibits a fencepost error. See also zeroth and note that not all off-by-one errors are fencepost errors. The game of Musical Chairs involves a catastrophic off-by-one error where N people try to sit in N - 1 chairs, but it's not a fencepost error. Fencepost errors come from counting things rather than the spaces between them, or vice versa, or by neglecting to consider whether one should count one or both ends of a row. 2. (Rare) An error induced by unexpected regularities in input values, which can (for instance) completely thwart a theoretically efficient binary tree or hash coding implementation. The error here involves the difference between expected and worst case behaviours of an algorithm.
  • ferroelasticity — (physics) A phenomenon, analogous to ferromagnetism and ferroelectricity, in which spontaneous strain arises within a material.
  • ferrous sulfate — a bluish-green, crystalline, saline-tasting, water-soluble heptahydrated solid, FeSO 4 ⋅7H 2 O, used chiefly in the manufacture of other iron salts, in water purification, fertilizer, inks, pigments, tanning, photography, and in medicine in the treatment of anemia.
  • fibrocartilages — Plural form of fibrocartilage.
  • fiesta de toros — a bullfight; corrida.
  • file descriptor — (programming, operating system)   An integer that identifies an open file within a process. This number is obtained as a result of opening a file. Operations which read, write, or close a file would take the file descriptor as an input parameter. In many operating system implementations, file descriptors are small integers which index a table of open files. In Unix, file descriptors 0, 1 and 2 correspond to the standard input, standard output and standard error files respectively. See file descriptor leak.
  • first intention — See under intention (def 5a).
  • first responder — a person who is certified to provide medical care in emergencies before more highly trained medical personnel arrive on the scene: a firefighter trained as a first responder.
  • first world war — World War I.
  • first-day cover — a cover marked so as to indicate that it was mailed on the first day of issue of the stamp it bears and from one of the cities at which the stamp was issued on that day.
  • first-intention — an act or instance of determining mentally upon some action or result.
  • fission product — a nuclide produced either directly by nuclear fission or by the radioactive decay of such a nuclide
  • fission reactor — a nuclear reactor in which a fission reaction takes place
  • five-star hotel — a top-quality hotel offering exceptional luxury
  • flatter oneself — to hold the self-satisfying or self-deluding belief (that)
  • flirtatiousness — The quality of being flirtatious.
  • floating screed — Building Trades. screed (def 3).
  • floods of tears — If you say that someone was in floods of tears or in a flood of tears, you are emphasizing that they were crying with great intensity because they were very upset.
  • floral tributes — bunches or arrangements of flowers left as a memorial at the site of a fatal incident
  • flow of spirits — natural happiness
  • fluoridationist — One who supports the addition of fluoride to the public water supply.
  • fluorophosphate — a salt or ester of a fluorophosphoric acid.
  • flying fortress — a heavy bomber, the B-17, with four radial piston engines, widely used over Europe and the Mediterranean by the U.S. Air Force in World War II.
  • food insecurity — an economic and social condition of limited or uncertain access to adequate food.
  • foolscap quarto — a book size, 63⁄4 by 81⁄2 inches (foolscap quarto)
  • for pity's sake — You can say for pity's sake to add emphasis to what you are saying, especially when you are annoyed or upset.
  • for the present — being, existing, or occurring at this time or now; current: increasing respect for the present ruler of the small country.
  • for the sake of — for the good of
  • for their pains — You say that something was all you got for your pains when you are mentioning the disappointing result of situation into which you put a lot of work or effort.
  • force the issue — to compel decision on some matter
  • forecastle deck — a partial weather deck on top of a forecastle superstructure; topgallant forecastle.
  • forecastle head — the extreme fore part of a forecastle superstructure.
  • forensic expert — an expert in applying scientific, technical or medical knowledge to the purposes of law
  • foreshortenings — Plural form of foreshortening.
  • foresightedness — care or provision for the future; provident care; prudence.
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