15-letter words containing o, u
- 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.
- feeding grounds — the place where animals gather to find food
- fellow creature — a kindred creature, especially a fellow human being.
- ferromolybdenum — a ferroalloy containing up to 60 percent molybdenum.
- 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.
- 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
- fifth columnist — A fifth columnist is someone who secretly supports and helps the enemies of the country or organization they are in.
- figure of eight — figure eight.
- figure of merit — a measure of the efficiency of a helicopter in hover
- finishing touch — a final additional or detail that completes and perfects something
- finite automata — Finite State Machine
- finno-russo war — the war (1939–40) between Finland and the Soviet Union.
- fishhook cactus — a large cactus, Ferocactus wislizenii, of the southwestern U.S. and Mexico, having hooked spines and red or yellow flowers.
- 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
- fissiparousness — The quality of being fissiparous.
- flange coupling — a driving coupling between rotating shafts that consists of flanges (or half couplings) one of which is fixed at the end of each shaft, the two flanges being bolted together with a ring of bolts to complete the drive
- flannel-mouthed — speaking thickly, as if one's mouth were full of flannel
- 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.
- 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 supply — the aggregate supply of ready-to-market goods or securities.
- flood insurance — insurance covering loss or damage to property arising from a flood, flood tide, or the like.
- floral tributes — bunches or arrangements of flowers left as a memorial at the site of a fatal incident
- 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.
- flowering shrub — any shrub that produces flowers
- 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.
- fluorochemicals — Plural form of fluorochemical.
- fluorophosphate — a salt or ester of a fluorophosphoric acid.
- 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.
- fly honeysuckle — either of two honeysuckle shrubs, Lonicera canadensis, of eastern North America, or L. xylosteum, of Eurasia, having paired yellowish flowers tinged with red.
- 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.
- follow-up study — a second study made as a follow-up to an initial study
- follow-up visit — a visit made as a follow-up to an initial visit
- food insecurity — an economic and social condition of limited or uncertain access to adequate food.
- food supplement — a substance designed to make up for a deficiency in one's diet
- foolscap quarto — a book size, 63⁄4 by 81⁄2 inches (foolscap quarto)
- football ground — an area of land where football games are played
- football league — highest-level soccer competition
- forbidden fruit — the fruit of the tree of knowledge of good and evil, tasted by Adam and Eve against God's prohibition. Gen. 2:17; 3:3.
- force the issue — to compel decision on some matter
- forget about it — don't mention it, you're welcome
- fork-lift truck — Also called forklift truck, fork truck. a small vehicle with two power-operated prongs at the front that can be slid under heavy loads and then raised for moving and stacking materials in warehouses, shipping depots, etc.