15-letter words containing a, t, f, i
- ferranti f100-l — (processor) A processor, with 16-bit addressing, registers and data paths and a 1-bit serial ALU. The F100-L could only access 32K of memory (one address bit was used for indirection). It was designed by a British company for the British Military. The unique feature of the F100-L was that it had a complete control bus available for a coprocessor. Any instruction the F100-L couldn't decode was sent directly to the coprocessor for processing. Applications for coprocessors at the time were limited, but the design is still used in modern processors, such as the National Semiconductor 32000 series. The disk operating system was written by Alec Cawley.
- ferroelasticity — (physics) A phenomenon, analogous to ferromagnetism and ferroelectricity, in which spontaneous strain arises within a material.
- fetal diagnosis — prenatal determination of genetic or chemical abnormalities in a fetus, esp by amniocentesis
- fetishistically — in a fetishistic manner
- fibrocartilages — Plural form of fibrocartilage.
- field artillery — artillery mobile enough to accompany troops in the field.
- fiesta de toros — a bullfight; corrida.
- fifth amendment — an amendment to the U.S. Constitution, ratified in 1791 as part of the Bill of Rights, providing chiefly that no person be required to testify against himself or herself in a criminal case and that no person be subjected to a second trial for an offense for which he or she has been duly tried previously.
- fight city hall — to take up the apparently futile fight against petty or impersonal bureaucratic authority
- fighter command — a former unit of the Royal Air Force dedicated to the use of fighter aircraft, esp against enemy bombers and their escorts during WWII
- fighting chance — a possibility of success following a struggle.
- figurate number — a number having the property that the same number of equally spaced dots can be arranged in the shape of a regular geometrical figure.
- file management — the work of organizing and arranging files in a computer
- filling station — service station (def 1).
- fillister plane — an adjustable plane for cutting rabbets, grooves, etc
- finger alphabet — a series of shapes made by the fingers that indicate letters of an alphabet and can be used in fingerspelling for the deaf
- finger painting — a jellylike paint, used chiefly by children in painting, usually with their fingers.
- finite automata — Finite State Machine
- fire department — the department of a municipal government charged with the prevention and extinguishing of fire.
- fire resistance — the amount of resistance of a material or construction to fire.
- fire water pond — A fire water pond is an area of water which is kept so it can be used if there is a fire.
- fire-and-forget — used to describe a type of missile that, once fired, is able to guide itself to its target
- first amendment — an amendment to the U.S. Constitution, ratified in 1791 as part of the Bill of Rights, prohibiting Congress from interfering with freedom of religion, speech, assembly, or petition.
- first gentleman — (often initial capital letters) the husband of the U.S. president or a current governor or mayor.
- first secretary — The First Secretary of the Welsh Assembly is the leader of the ruling party.
- first world war — World War I.
- first-day cover — a cover marked so as to indicate that it was mailed on the first day of issue of the stamp it bears and from one of the cities at which the stamp was issued on that day.
- fish restaurant — a restaurant which serves mainly fish
- fishhook cactus — a large cactus, Ferocactus wislizenii, of the southwestern U.S. and Mexico, having hooked spines and red or yellow flowers.
- fission reactor — a nuclear reactor in which a fission reaction takes place
- fit as a fiddle — a musical instrument of the viol family.
- fitness fanatic — someone who is obsessed with exercise and keeping himself or herself fit
- fitness tracker — a wearable electronic device or a software application that monitors one's physical fitness and daily physical activity.
- fitness trainer — someone whose job is to improve other people's fitness
- five-star hotel — a top-quality hotel offering exceptional luxury
- fixed liability — a liability, as a mortgage or debenture, that will not mature for a relatively long time.
- fixed satellite — a satellite in a geostationary orbit
- flag lieutenant — an admiral's ADC
- flame-arc light — an arc light that uses flame carbons to colour the arc
- flapping router — (networking) A router that transmits routing updates alternately advertising a destination network first via one route, then via a different route. Flapping routers are identified on more advanced protocol analysers such as the Network General (TM) Sniffer.
- flashlight fish — any of several fishes, especially Photoblepharon palpebratus, inhabiting deep, dark waters and having light organs that can be closed with a lid.
- fleet insurance — Fleet insurance is a type of insurance contract that applies to a number of vehicles.
- flemish brabant — a province of central Belgium, formed in 1995 from the N part of Brabant province: densely populated and intensively farmed, with large industrial centres. Pop: 1 031 904 (2004 est). Area: 2106 sq km (813 sq miles)
- flight of fancy — An idea or statement that is very imaginative but complicated, silly, or impractical can be referred to as a flight of fancy.
- flight of ideas — a rapid flow of thought, manifested by accelerated speech with abrupt changes from topic to topic: a symptom of some mental illnesses, especially manic disorder.
- flight sergeant — a noncommissioned officer in the Royal Air Force junior in rank to a master aircrew
- flimflam artist — trickster; swindler
- flirtatiousness — The quality of being flirtatious.
- floating charge — an unsecured charge on the assets of an enterprise that allows such assets to be used commercially until the enterprise ceases to operate or the creditor intervenes to demand collateral
- floating island — a dessert consisting of boiled custard with portions of meringue, whipped cream, or whipped egg whites and sometimes jelly floating upon it or around it.