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15-letter words containing r, s, f

  • early saxifrage — an eastern North American plant, Saxifraga virginiensis, of the saxifrage family, having toothed basal leaves and branched clusters of small white flowers.
  • effort syndrome — an anxiety reaction characterized by quick fatigue, shortness of breath, rapid heartbeat, dizziness, and other cardiac symptoms, but not caused by disease of the heart.
  • effort-syndrome — an anxiety reaction characterized by quick fatigue, shortness of breath, rapid heartbeat, dizziness, and other cardiac symptoms, but not caused by disease of the heart.
  • enfranchisement — The act of enfranchising.
  • evens favourite — the favourite to win a race and on which the bookmakers are offering even odds.
  • existence proof — non-constructive proof
  • express oneself — to communicate one's thoughts or ideas
  • fabric softener — a substance added to fabrics during laundering to make them puffier and softer.
  • facile princeps — an obvious leader
  • 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
  • fair and square — free from bias, dishonesty, or injustice: a fair decision; a fair judge.
  • 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 decretals — the Pseudo-Isidorian documents.
  • false hellebore — any of various plants belonging to the genus Veratrum, of the lily family, especially a North American species, V. viride, which has clusters of yellowish-green flowers and is the source of substances used in certain medicines and insecticides.
  • false miterwort — foamflower.
  • false pregnancy — physiological signs of pregnancy without conception; pseudocyesis.
  • false pretences — fraud, deception
  • false pretenses — If you do something under false pretenses, you do it when people do not know the truth about you and your intentions.
  • familiar spirit — a supernatural spirit often assuming animal form, supposed to attend and aid a witch, wizard, etc
  • familiarisation — Alternative spelling of familiarization.
  • fantasmagorical — Alternative form of phantasmagorical.
  • farmers' market — a market or group of stalls and booths where farmers and sometimes other vendors sell their products directly to consumers.
  • fashion-forward — relating to, anticipating, or reflecting the most up-to-date fashion trends
  • 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.
  • featherstitched — Simple past tense and past participle of featherstitch.
  • federal reserve — In the United States, the Federal Reserve is the central banking system, which is responsible for setting policy on monetary matters such as money supply and interest rates.
  • fee-for-service — pertaining to the charging of fees for specific services rendered in health care, as distinguished from participating in a prepaid medical practice: fee-for-service medicine.
  • feeding grounds — the place where animals gather to find food
  • female suffrage — woman suffrage.
  • 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.
  • ferrous sulfide — a dark or black metallic crystalline compound, FeS, insoluble in water, soluble in acids, used in ceramics and to generate hydrogen sulfide.
  • fibrocartilages — Plural form of fibrocartilage.
  • fideicommissary — the recipient of a fideicommissum.
  • fiduciary issue — an issue of banknotes not backed by gold
  • fiesta de toros — a bullfight; corrida.
  • fighting spirit — courage and determination expressed in a willingness to fight or struggle
  • 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.
  • fillister plane — an adjustable plane for cutting rabbets, grooves, etc
  • finders keepers — whoever finds something has the right to keep it
  • finger spelling — a method of communicating with or among deaf people in which different shapes made with the fingers represent different letters of the alphabet
  • finno-russo war — the war (1939–40) between Finland and the Soviet Union.
  • fire resistance — the amount of resistance of a material or construction to fire.
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