16-letter words containing e, u, o
- ferrous sulphate — an iron salt with a saline taste, usually obtained as greenish crystals of the heptahydrate, which are converted to the white monohydrate above 100°C: used in inks, tanning, water purification, and in the treatment of anaemia. Formula: FeSO4
- ferruginous duck — a common European duck, Aythyra nyroca, having reddish-brown plumage with white wing bars
- feulgen reaction — a reaction in which an aldehyde combines with a modified Schiff's reagent to produce a purplish compound: used especially to test for the presence of DNA
- fibonacci number — a number in the Fibonacci sequence, each of which is the sum of the previous two
- fictitious force — any force that is postulated to account for apparent deviations from Newton's laws of motion appearing in an accelerated reference system.
- figure of speech — any expressive use of language, as a metaphor, simile, personification, or antithesis, in which words are used in other than their literal sense, or in other than their ordinary locutions, in order to suggest a picture or image or for other special effect. Compare trope (def 1).
- figure-conscious — concerned to keep an attractively slim body shape
- finished product — the product that emerges at the end of a manufacturing process
- finite automaton — Finite State Machine
- fire regulations — rules intended to make sure that people and property stay safe in the event of a fire
- fire-tube boiler — any boiler for generating steam by passing hot gases and other combustible products through tubes (fire tubes) immersed in water to a chimney or uptake.
- fissure eruption — the emergence of lava from a fissure in the ground rather than from a volcanic cone or vent
- flamborough head — a chalk promontory in NE England, on the coast of the East Riding of Yorkshire
- flame cultivator — an implement that kills weeds by scorching them with a directed flow of flaming gas.
- flashbulb memory — the clear recollections that a person may have of the circumstances associated with a dramatic event
- flowering quince — any shrub belonging to the genus Chaenomeles, of the rose family, native to eastern Asia, having showy, waxy flowers and a quincelike fruit, grown widely as an ornamental.
- fluorescent lamp — a tubular electric discharge lamp in which light is produced by the fluorescence of phosphors coating the inside of the tube.
- flutter tonguing — a method of sounding a wind instrument, esp the flute, with a rolling movement of the tongue
- focused strategy — a business strategy in which an organization divests itself of all but its core activities, using the funds raised to enhance the distinctive abilities that give it an advantage over its rivals
- follicular phase — a stage of the menstrual cycle, from onset of menstruation to ovulation.
- follow-up letter — a letter sent as a follow-up to an initial letter or to a telephone call, meeting, etc
- foot fault judge — on official on the baseline who is responsible for calling foot faults
- for a good cause — If you say that something is for a good cause, you mean that it is worth doing or giving to because it will help other people, for example by raising money for charity.
- for a/one minute — If you say that you do not believe for a minute or for one minute that something is true, you are emphasizing that you do not believe that it is true.
- for external use — If medicine is for external use, it is intended to be used only on the outside of your body, and not to be eaten or drunk.
- for good measure — a unit or standard of measurement: weights and measures.
- for the duration — If you say that something will happen for the duration, you mean that it will happen for as long as a particular situation continues.
- forbush decrease — the sudden decrease in the intensity of cosmic rays after an increase in solar activity.
- foreign currency — money used in another country
- foreign language — language not one's mother tongue
- foundation stone — any of the stones composing the foundation of a building.
- founders' shares — shares awarded to the founders of a company and often granting special privileges
- four-course meal — A four-course meal is a meal that consists of four parts served one after the other.
- four-deal bridge — a version of bridge in which four hands only are played, the players then cutting for new partners
- four-dimensional — of a space having points, or a set having elements, which require four coordinates for their unique determination.
- four-leaf clover — a clover leaf having four leaflets instead of the usual three, purported to bring good luck.
- four-letter word — any of a number of short words, usually of four letters, considered offensive or vulgar because of their reference to excrement or sex.
- four-masted brig — jackass bark (def 2).
- four-minute mile — a mile-long race run in four minutes or less
- four-star petrol — petrol containing lead, formerly sold in the UK
- four-wheel drive — a drive system in which engine power is transmitted to all four wheels for improved traction.
- fourier analysis — the expression of any periodic function as a sum of sine and cosine functions, as in an electromagnetic wave function. Compare Fourier series.
- fourth amendment — an amendment to the U.S. Constitution, ratified in 1791 as part of the Bill of Rights, prohibiting unlawful search and seizure of personal property.
- fourth dimension — Physics, Mathematics. a dimension in addition to length, width, and depth, used so as to be able to employ geometrical language in discussing phenomena that depend on four variables: Time is considered a fourth dimension for locating points in space-time.
- fraternity house — a house occupied by a college or university fraternity.
- fraunhofer lines — a set of dark lines appearing in the continuous emission spectrum of the sun. It is caused by the absorption of light of certain wavelengths coming from the hotter region of the sun by elements in the cooler outer atmosphere
- french community — a cultural and economic association of France, its overseas departments and territories, and former French territories that chose to maintain association after becoming independent republics: formed 1958.
- frontier dispute — a conflict concerning a frontier between countries and which usually involves those countries
- fuel consumption — use of a material to generate power
- full court press — Basketball. a tactic of harassing, close-guarding defense in which the team without the ball pressures the opponent man-to-man the entire length of the court in order to disrupt dribbling or passing and force a turnover: Suddenly behind by eighteen points, they went to a full-court press.