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15-letter words containing o, n, r, f

  • fault tolerance — (architecture)   1. The ability of a system or component to continue normal operation despite the presence of hardware or software faults. This often involves some degree of redundancy. 2. The number of faults a system or component can withstand before normal operation is impaired.
  • 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.
  • 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.
  • ferrihemoglobin — methemoglobin.
  • ferromolybdenum — a ferroalloy containing up to 60 percent molybdenum.
  • field of honour — the place or scene of a battle or duel, esp of jousting tournaments in medieval times
  • field woundwort — the plant Stachys arvensis
  • fighter command — a former unit of the Royal Air Force dedicated to the use of fighter aircraft, esp against enemy bombers and their escorts during WWII
  • finger-pointing — the imputation of blame or responsibility.
  • finno-russo war — the war (1939–40) between Finland and the Soviet Union.
  • fire prevention — safety measures to decrease fire risk
  • fire water pond — A fire water pond is an area of water which is kept so it can be used if there is a fire.
  • fire-and-forget — used to describe a type of missile that, once fired, is able to guide itself to its target
  • 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-intention — an act or instance of determining mentally upon some action or result.
  • fishing harbour — a place where fishing boats are tied up
  • 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
  • fissiparousness — The quality of being fissiparous.
  • flamingo-flower — a central American plant, Anthurium scherzeranum, of the arum family, having a red, coiled spadix and a bright red, shiny, heart-shaped spathe, grown as an ornamental.
  • flapping router — (networking)   A router that transmits routing updates alternately advertising a destination network first via one route, then via a different route. Flapping routers are identified on more advanced protocol analysers such as the Network General (TM) Sniffer.
  • flatter oneself — to hold the self-satisfying or self-deluding belief (that)
  • flavor enhancer — a substance added to food in order to enhance or intensify its flavor: Salt is a common flavor enhancer.
  • flavourdynamics — as in quantum flavour dynamics, a mathematical model used to describe the interaction of flavoured particles (weak force) through the exchange of intermediate vector bosons
  • flavourlessness — Alternative spelling of flavorlessness.
  • flavoursomeness — Alt form flavorsomeness.
  • flirtatiousness — The quality of being flirtatious.
  • floating charge — an unsecured charge on the assets of an enterprise that allows such assets to be used commercially until the enterprise ceases to operate or the creditor intervenes to demand collateral
  • 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.
  • floral envelope — the calyx and corolla of a flower.
  • florence fennel — a variety of fennel, Foeniculum vulgare azoricum, having enlarged leaf bases, which are blanched and used especially as an ingredient in salads.
  • florida current — the part of the Gulf Stream which extends from the Florida Strait to Cape Hatteras.
  • floriferousness — Quality of being floriferous, or bearing many flowers.
  • flow of control — control flow
  • flowerhorn fish — a brightly coloured cichlid fish with a large protuberance on the head
  • flowering maple — any of various shrubs belonging to the genus Abutilon, of the mallow family, having large, bright-colored flowers.
  • flowering plant — a plant that produces flowers, fruit, and seeds; angiosperm.
  • flowering shrub — any shrub that produces flowers
  • flowers of zinc — a white or yellowish-white, amorphous, odorless, water-insoluble powder, ZnO, used chiefly as a paint pigment, in cosmetics, dental cements, matches, white printing inks, and opaque glass, and in medicine in the treatment of skin conditions.
  • fluoridationist — One who supports the addition of fluoride to the public water supply.
  • fluorine dating — a method of determining the relative age of fossil bones found in the same excavation by comparing their fluorine content.
  • fluoroquinolone — Any of a class of therapeutic antibiotics that are active against a range of bacteria associated with human and animal diseases. Their use in livestock has sparked concerns about the spread of bacteria resistant to them in humans.
  • 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.
  • focusing screen — a camera in which the image appears on a ground-glass viewer (focusing screen) after being reflected by a mirror or after passing through a prism or semitransparent glass; in one type (single-lens reflex camera) light passes through the same lens to both the ground glass and the film, while in another type (twin-lens reflex camera) light passes through one lens (viewing lens) to the ground glass and through a second lens (taking lens) to the film, the lenses being mechanically coupled for focusing.
  • food insecurity — an economic and social condition of limited or uncertain access to adequate food.
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