15-letter words containing f, a, i, n
- flowering plant — a plant that produces flowers, fruit, and seeds; angiosperm.
- fluid mechanics — an applied science dealing with the basic principles of gaseous and liquid matter.
- 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.
- flying characin — hatchetfish (def 2).
- flying dutchman — a legendary Dutch ghost ship supposed to be seen at sea, especially near the Cape of Good Hope.
- fob destination — FOB destination is a shipping term indicating that ownership of goods passes at delivery to their destination, and the seller has total responsibility until then.
- focal infection — an infection in which bacteria are localized in some region, as the tonsils or the tissue around a tooth, from which they may spread to some other organ or structure of the body.
- for a certainty — without doubt
- for a rainy day — If you say that you are saving something, especially money, for a rainy day, you mean that you are saving it until a time in the future when you might need it.
- for their pains — You say that something was all you got for your pains when you are mentioning the disappointing result of situation into which you put a lot of work or effort.
- foreign affairs — politics: international relations
- form an opinion — decide what you think
- formation dance — any dance in which a number of couples form a certain arrangement, such as two facing lines or a circle, and perform a series of figures within or based on that arrangement
- formation fluid — Formation fluid is fluid in the pores (=tiny holes) of a rock.
- formation rules — the set of rules that specify the syntax of a formal system; the algorithm that generates the well-formed formulae
- formularization — The act of formularizing; a formularized or formulated statement or exhibition.
- forward-looking — planning for or anticipating possible future events, conditions, etc.; progressive.
- foundationalism — (epistemology) The doctrine that beliefs derive justification from certain basic beliefs.
- founding father — The founding father of an institution, organization, or idea is the person who sets it up or who first develops it.
- fountain valley — a city in SW California.
- fountains abbey — a ruined Cistercian abbey near Ripon in Yorkshire: founded 1132, dissolved 1539; landscaped 1720
- fovea centralis — a small pit or depression at the back of the retina forming the point of sharpest vision.
- fractional note — a banknote in a denomination smaller than the standard unit of currency
- fractionalizing — Present participle of fractionalize.
- fragmentariness — The quality of being fragmentary.
- fragrance strip — a folded, usually sealed strip on a page or card, impregnated with fragrance that is released when pulled or torn open: The magazine is full of fragrance strips in the advertisements.
- francis bushman — Francis X(avier) 1883–1966, U.S. film actor.
- francis turbine — a water turbine designed to produce high flow from a low head of pressure: used esp in hydroelectric power generation
- franco-american — an American of French or French-Canadian descent.
- frankensteinian — a person who creates a monster or a destructive agency that cannot be controlled or that brings about the creator's ruin.
- franklin pierce — Franklin, 1804–69, 14th president of the U.S. 1853–57.
- franklin square — a town on W Long Island, in SE New York.
- franklin's gull — a black-headed North American gull, Larus pipixcan, feeding chiefly on insects.
- franz ferdinand — Francis Ferdinand.
- franz joseph ii — 1906–1989, prince of Liechtenstein 1938–89.
- fraternal twins — one of a pair of twins, not necessarily resembling each other, or of the same sex, that develop from two separately fertilized ova.
- french canadian — a descendant of the early French colonists of Canada.
- french guianese — an overseas department of France, on the NE coast of South America: formerly a French colony. 35,135 sq. mi. (91,000 sq. km). Capital: Cayenne.
- french marigold — a composite plant, Tagetes patula, of Mexico, having yellow flowers with red markings.
- french tamarisk — a shrub or small tree, Tamarix gallica, of the Mediterranean region, having bluish foliage and white or pinkish flowers.
- french-speaking — able to speak French
- fresh-air fiend — a person who enjoys being outdoors or having good ventilation when indoors
- friar's lantern — ignis fatuus (def 1).
- friedmann model — any model of the universe deduced from a homogeneous, isotropic solution of Einstein's field equations without a cosmological constant. Such models form the mathematical basis for many modern cosmologies and provide for expansion or contraction of the universe.
- friedrichshafen — a city in Baden-Württemberg, S Germany, on Lake Constance.
- friend at court — a friend in a position of influence or power who may advance one's interests, especially a helpful person who is close to someone in authority.
- fringe festival — an unofficial, often unconventional, arts festival that is associated with another, larger festival
- fringed gentian — a plant of the genus Gentianopsis (or Gentiana), especially G. crinita, having a tubular blue corolla with four fringed petals.
- frisian carving — geometrical incised carving.