16-letter words containing r, u, n, i
- 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
- figure-conscious — concerned to keep an attractively slim body shape
- find favour with — to be approved of by someone
- finished product — the product that emerges at the end of a manufacturing process
- fire regulations — rules intended to make sure that people and property stay safe in the event of a fire
- first lieutenant — an officer ranking next above second lieutenant and next below a captain.
- fishing industry — the industry of catching fish
- fissure eruption — the emergence of lava from a fissure in the ground rather than from a volcanic cone or vent
- fixed-price menu — In a restaurant, the cost of a meal on a fixed-price menu stays the same and does not vary.
- 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.
- flutter tonguing — a method of sounding a wind instrument, esp the flute, with a rolling movement of the tongue
- fool around with — have casual sex
- 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 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.
- foreign currency — money used in another country
- foreign language — language not one's mother tongue
- four-dimensional — of a space having points, or a set having elements, which require four coordinates for their unique determination.
- four-minute mile — a mile-long race run in four minutes or less
- 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 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.
- franchise clause — a clause stipulating that the insured will be responsible for any loss not in excess of a stated amount, and the insurance company will be liable for full payment of the loss equaling or exceeding the amount up to the insured amount.
- francis of paula — Saint, 1416–1507, Italian monk: founder of the order of Minims.
- 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
- freezing mixture — a mixture of two substances, usually salt and ice, to give a temperature below 0°C
- 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
- functional group — a group of atoms responsible for the characteristic behavior of the class of compounds in which the group occurs, as the hydroxyl group in alcohols.
- functional water — water containing additives that provide extra nutritional value
- funeral director — a person, usually a licensed embalmer, who supervises or conducts the preparation of the dead for burial and directs or arranges funerals.
- furniture polish — product: shines wood
- gallium arsenide — a crystalline and highly toxic semiconductor, GaAs, used in light-emitting diodes, lasers, and electronic devices.
- garcia y iniguez — Calixto [kah-lees-taw] /kɑˈlis tɔ/ (Show IPA), 1839?–98, Cuban lawyer, soldier, and revolutionist.
- gaudí (i cornet) — An‧to‧nio (ɑnˈtɔnjɔ ) ; änt^ōˈny^ō) 1852-1926; Sp. architect
- gaussian integer — a complex number of the form a + bi where a and b are integers.
- general solution — a solution to a differential equation that contains arbitrary, unevaluated constants.
- get into trouble — be punished for wrongdoing
- get on your wick — If you say that someone or something gets on your wick, you mean that they annoy and irritate you.
- gingerbread plum — a tree, Neocarya macrophylla, of western Africa, bearing a large, edible, starchy fruit.
- girls' night out — an evening spent outside of the home by a group of women
- gnu archive site — (body) The main GNU FTP archive is on gnu.org but copies ("mirrors") of some or all of the files there are also held on many other computers around the world. To avoid overloading gnu.org and the Internet you should FTP files from the machine closest to yours. Look for a directory like /pub/gnu, /mirrors/gnu, /systems/gnu or /archives/gnu.
- government issue — (often initial capital letter) issued or supplied by the government or one of its agencies.
- grand inquisitor — (often initial capital letters) the presiding officer of a court of inquisition.
- granulocytopenia — a diminished number of granulocytes in the blood, which occurs in certain forms of anaemia
- graphic language — For specifying graphic operations.
- green revolution — an increase in food production, especially in underdeveloped and developing nations, through the introduction of high-yield crop varieties and application of modern agricultural techniques.
- greyhound racing — a sport in which a mechanically propelled dummy hare is pursued by greyhounds around a race track
- grind your teeth — If you grind your teeth, you rub your upper and lower teeth together as though you are chewing something.