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

  • existence proof — non-constructive proof
  • export earnings — the earnings of a company or country that are generated through the export of goods or services
  • express oneself — to communicate one's thoughts or ideas
  • expression mark — one of a set of musical directions, usually in Italian, indicating how a piece or passage is to be performed
  • expression tree — (mathematics, grammar)   The syntax tree of an expression.
  • expressionistic — Expressionist.
  • expulsion order — a legal document ordering someone's expulsion
  • extemporisation — Alternative spelling of extemporization.
  • exteriorisation — Mental awareness of the form of something that cannot be directly visualised.
  • 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.
  • 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 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.
  • 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.
  • 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
  • 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.
  • 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.
  • fireless cooker — an insulated container that seals in heat to cook food.
  • 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-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 reactor — a nuclear reactor in which a fission reaction takes place
  • fissiparousness — The quality of being fissiparous.
  • five-star hotel — a top-quality hotel offering exceptional luxury
  • flatter oneself — to hold the self-satisfying or self-deluding belief (that)
  • flavourlessness — Alternative spelling of flavorlessness.
  • flavoursomeness — Alt form flavorsomeness.
  • flirtatiousness — The quality of being flirtatious.
  • floating screed — Building Trades. screed (def 3).
  • flood insurance — insurance covering loss or damage to property arising from a flood, flood tide, or the like.
  • 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.
  • floor exercises — exercises designed to improve fitness, carried out on the floor
  • floral tributes — bunches or arrangements of flowers left as a memorial at the site of a fatal incident
  • floriferousness — Quality of being floriferous, or bearing many flowers.
  • flowerhorn fish — a brightly coloured cichlid fish with a large protuberance on the head
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