16-letter words containing r, o, f, i
- 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.
- fraises des bois — wild strawberries
- francis joseph i — 1830–1916, emperor of Austria 1848–1916; king of Hungary 1867–1916.
- francis of paula — Saint, 1416–1507, Italian monk: founder of the order of Minims.
- francis of sales — Saint, 1567–1622, French ecclesiastic and writer on theology: bishop of Geneva 1602–22.
- francis townsend — Francis Everett, 1867–1960, U.S. physician and proposer of the Townsend plan.
- francisco franco — Francisco (Francisco Paulino Hermenegildo Teódulo Franco-Bahamonde"El Caudillo") 1892–1975, Spanish military leader and dictator: chief of state 1939–47; regent of the kingdom of Spain 1947–75.
- 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
- free association — the uncensored expression of the ideas, impressions, etc., passing through the mind of the analysand, a technique used to facilitate access to the unconscious.
- 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.
- french directory — the body of five directors in power in France from 1795 until their overthrow by Napoleon in 1799
- french indochina — an area in SE Asia, formerly a French colonial federation including Cochin-China, the protectorates of Annam, Cambodia, Tonkin, and Laos, and the leased territory of Kwangchowan: now comprising the three independent states of Vietnam, Cambodia, and Laos. Capital: Hanoi.
- french polynesia — a French overseas territory in the S Pacific, including the Society Islands, Marquesas Islands, and other scattered island groups. 1544 sq. mi. (4000 sq. km). Capital: Papeete.
- friction gearing — wheels or disks transmitting power by means of frictional contact.
- friction welding — a method of welding thermoplastics or metals by the heat generated by rubbing the members to be joined against each other under pressure.
- friedrich wohler — Friedrich [free-drikh] /ˈfri drɪx/ (Show IPA), 1800–82, German chemist.
- friendly society — law: mutual group providing benefits
- fringed polygala — a North American milkwort, Polygala paucifolia, having flowers with purplish-pink, winglike petals and a fringed tube.
- front projection — a display system that projects an enlarged television picture on the front surface of a reflective screen.
- frontier dispute — a conflict concerning a frontier between countries and which usually involves those countries
- frontier orbital — the highest-energy occupied orbital or lowest-energy unoccupied orbital in a molecule. Such orbitals have a large influence on chemical properties
- full to the brim — If something, especially a container, is filled to the brim or full to the brim with something, it is filled right up to the top.
- 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
- gazetted officer — (in India) a senior official whose appointment is published in the government gazette
- gender-profiling — the use of personal characteristics or behavior patterns to make generalizations about a person, as in gender profiling.
- go for your life — an expression of encouragement
- go off the rails — If someone goes off the rails, they start to behave in a way that other people think is unacceptable or very strange, for example they start taking drugs or breaking the law.
- go with the turf — to be an unavoidable part of a particular situation or process
- go-faster stripe — a decorative line, intended to be suggestive of high speed, on the bodywork of a car
- gold certificate — a former U.S. paper currency issued by the federal government for circulation from 1865 to 1933, equal to and redeemable for gold to a stated value.
- good-for-nothing — worthless; of no use.
- gravity platform — (in the oil industry) a drilling platform that rests directly on the sea bed and is kept in position by its own weight; it is usually made of reinforced concrete
- group identifier — (operating system) (gid) A unique number, between 0 an 32767, identifying a set of users under Unix. Gids are found in the /etc/passwd and /etc/group databases (or their NIS equivalents) and one is also associated with each file, indicating the group to which its group permissions apply.
- half life period — Physics. the time required for one half the atoms of a given amount of a radioactive substance to disintegrate.
- harvey firestone — Harvey Samuel, 1868–1938, U.S. industrialist and rubber manufacturer.
- have no time for — not tolerate
- heat of reaction — the heat evolved or absorbed when one mole of a product is formed at constant pressure
- high-performance — A high-performance car or other product goes very fast or does a lot.
- hold a brief for — to argue for; champion
- homme d'affaires — a businessman.
- hopfield network — (artificial intelligence) (Or "Hopfield model") A kind of neural network investigated by John Hopfield in the early 1980s. The Hopfield network has no special input or output neurons (see McCulloch-Pitts), but all are both input and output, and all are connected to all others in both directions (with equal weights in the two directions). Input is applied simultaneously to all neurons which then output to each other and the process continues until a stable state is reached, which represents the network output.
- horsehair fungus — an edible white, striated, umbrella-capped mushroom, Marasmius rotula, commonly found in eastern North America.
- hourglass figure — the shape of a woman who is well-proportioned and has a small waist
- house of worship — house of God.
- hydroferricyanic — (chemistry) Pertaining to, or containing, or obtained from, hydrogen, ferric iron, and cyanogen.
- hydroformylation — the addition of a hydrogen atom and the formyl group to a double bond of a hydrocarbon by reaction with a mixture of carbon monoxide and hydrogen in the presence of a catalyst.