15-letter words containing f, o, r, l
- flow of spirits — natural happiness
- flowerhorn fish — a brightly coloured cichlid fish with a large protuberance on the head
- flowering maple — any of various shrubs belonging to the genus Abutilon, of the mallow family, having large, bright-colored flowers.
- flowering plant — a plant that produces flowers, fruit, and seeds; angiosperm.
- flowering shrub — any shrub that produces flowers
- flowers of zinc — a white or yellowish-white, amorphous, odorless, water-insoluble powder, ZnO, used chiefly as a paint pigment, in cosmetics, dental cements, matches, white printing inks, and opaque glass, and in medicine in the treatment of skin conditions.
- 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.
- flying fortress — a heavy bomber, the B-17, with four radial piston engines, widely used over Europe and the Mediterranean by the U.S. Air Force in World War II.
- fool's paradise — a state of enjoyment based on false beliefs or hopes; a state of illusory happiness.
- 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 player — sportsperson: plays football
- for good or ill — If you say that something is happening or will happen for good or ill, you mean that it is out of anyone's control whether it happens and what its effects will be.
- for the love of — a profoundly tender, passionate affection for another person.
- fore-topgallant — being a sail, yard, or rigging belonging to a fore-topgallant mast.
- forecastle deck — a partial weather deck on top of a forecastle superstructure; topgallant forecastle.
- forecastle head — the extreme fore part of a forecastle superstructure.
- forehand volley — a type of forehand shot played in tennis
- 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.
- formal argument — (programming) (Or "parameter") A name in a function or subroutine definition that is replaced by, or bound to, the corresponding actual argument when the function or subroutine is called. In many languages formal arguments behave like local variables which get initialised on entry. See: argument.
- formal calculus — an uninterpreted symbolic system whose syntax is precisely defined, and on which a relation of deducibility is defined in purely syntactic terms; a logistic system
- formal language — correct or polite words and phrases
- 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.
- fort lauderdale — a city in SE Florida: seashore resort.
- forward echelon — (in a military operation) the troops and officers in a combat zone or in a position to engage the enemy.
- forward-looking — planning for or anticipating possible future events, conditions, etc.; progressive.
- four-ball match — a match, scored by holes, between two pairs of players, in which the four players tee off and the partners alternate in hitting the pair's ball having the better lie off the tee.
- fourth official — In football, the fourth official is an official who assists the referee and assistant referees from the side of the pitch.
- fourth republic — the republic established in France in 1945 and replaced by the Fifth Republic in 1958.
- 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.
- fraternal order — men's organization
- free soil party — a former U.S. political party (1848–56) that opposed the extension of slavery in the Territories not yet admitted to statehood.
- free throw lane — the rectangular area, 19 feet (5.7 meters) long and usually 12 or 16 feet (3.6 m or 4.8 meters) wide, extending from the end line behind each backboard to the foul line and along the sides of which players line up during a foul shot.
- free throw line — foul line (def 2).
- french marigold — a composite plant, Tagetes patula, of Mexico, having yellow flowers with red markings.
- french togoland — a former United Nations Trust Territory in W Africa, administered by France (1946–60), now the independent republic of Togo
- fresnel mirrors — two plane mirrors so linked that a beam of light falling on them is reflected in slightly different directions, thus producing interference fringes in the area where this reflected light overlaps
- friction clutch — a clutch in which one part turns another by friction between them.
- 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.
- frontal cyclone — any extratropical cyclone associated with a front: the most common cyclonic storm.
- frozen shoulder — joint stiffness at top of arm
- full outer join — outer join