17-letter words containing l, f, r
- fermentation lock — a valve placed on the top of bottles of fermenting wine to allow bubbles to escape
- ferrimagnetically — In a ferrimagnetic manner.
- ferroelectric ram — Ferroelectric Random Access Memory
- fiddleback spider — brown recluse spider.
- field penny-cress — the common penny-cress, Thlaspi arvense.
- field sales force — a team of people selling a product or service in the field as opposed to over the telephone, etc
- fifth normal form — database normalisation
- financial adviser — A financial adviser is someone whose job it is to advise people about financial products and services.
- financial futures — futures in a stock-exchange index, currency exchange rate, or interest rate enabling banks, building societies, brokers, and speculators to hedge their involvement in these markets
- financial manager — a person responsible for the supervision and handling of the financial affairs of an organization
- financial planner — a person whose business is advising individuals in the management of their financial affairs
- fingerling potato — a finger-shaped potato
- fingertip control — control exercised through your fingertips, e.g. by touching a touchscreen
- first call on sth — If you have first call on something, you will be asked before anyone else whether you want to buy or use it.
- first normal form — database normalisation
- first-aid classes — classes which teach people how to give immediate medical help in an emergency
- first-loss policy — an insurance policy for goods in which a total loss is extremely unlikely and the insurer agrees to provide cover for a sum less than the total value of the property
- first-order logic — (language, logic) The language describing the truth of mathematical formulas. Formulas describe properties of terms and have a truth value. The following are atomic formulas: True False p(t1,..tn) where t1,..,tn are terms and p is a predicate. If F1, F2 and F3 are formulas and v is a variable then the following are compound formulas: The "order" of a logic specifies what entities "For all" and "Exists" may quantify over. First-order logic can only quantify over sets of atomic propositions. (E.g. For all p . p => p). Second-order logic can quantify over functions on propositions, and higher-order logic can quantify over any type of entity. The sets over which quantifiers operate are usually implicit but can be deduced from well-formedness constraints. In first-order logic quantifiers always range over ALL the elements of the domain of discourse. By contrast, second-order logic allows one to quantify over subsets.
- flagrante delicto — Law. in the very act of committing the offense.
- flash photography — photography using a momentary flash of artificial light as a source of illumination.
- flea in one's ear — a sharp rebuke
- flexible response — a military strategy that enables the response to an attack to be adapted to the nature and strength of the attack
- flickertail state — North Dakota (used as a nickname).
- flight instrument — any instrument used to indicate the altitude, attitude, airspeed, drift, or direction of an aircraft.
- floating currency — a currency that is free to fluctuate against other currencies in accordance with market forces
- floating dry dock — a dock that floats and can be lowered in the water for the entrance of a ship, and then raised for use as a dry dock
- flog a dead horse — a large, solid-hoofed, herbivorous quadruped, Equus caballus, domesticated since prehistoric times, bred in a number of varieties, and used for carrying or pulling loads, for riding, and for racing.
- floppy disk drive — disk drive
- florentine stitch — a straight stitch worked in a high and low relief pattern to form a variety of zigzag or oblique designs.
- flower-of-an-hour — a malvaceous Old World herbaceous plant, Hibiscus trionum, having pale yellow flowers with a bladder-like calyx
- flowering currant — an ornamental shrub, Ribes sanguineum, growing to 2 to 3 metres (6 to 9ft) in height, with red, crimson, yellow, or white flowers: family Saxifragaceae
- flowering dogwood — a North American dogwood tree, Cornus florida, having small greenish flowers in the spring, surrounded by white or pink bracts that resemble petals: the state flower and the state tree of Virginia.
- flowering tobacco — any plant belonging to the genus Nicotiana, of the nightshade family, as N. alata and N. sylvestris, having clusters of fragrant flowers that usually bloom at night, grown as an ornamental.
- flowers of sulfur — sublimed sulfur in the form of a fine yellow powder, used in medicine chiefly to kill parasites and fungi and to treat certain skin diseases.
- fluid lubrication — lubrication in which bearing surfaces are separated by an oil film sustained by the motion of the parts
- fluorescent light — a fluorescent lamp in domestic or commercial use; a fluorescent strip
- fluorescent strip — a fluorescent light in the form of a long strip
- fluvioterrestrial — (of animals) able to live in rivers and on land
- folie de grandeur — a delusion of grandeur; megalomania.
- follow the leader — a child's game in which players, one behind the other, follow a leader and must repeat or follow everything he or she does.
- footmen's gallery — the rearmost section of seats in the balcony of an English theater, especially in the late 17th and early 18th centuries.
- for all the world — the earth or globe, considered as a planet.
- for love or money — If you cannot or will not do something for love or money, you are completely unable to do it or you do not intend to do it.
- fore-and-aft sail — any of various sails, as jib-headed sails, gaff sails, lugsails, lateen sails, spritsails, staysails, and jibs, that do not set on yards and whose normal position, when not trimmed, is in a fore-and-aft direction amidships.
- foreign relations — (used with a singular verb) the field of foreign affairs: an expert in foreign relations.
- formative element — a morpheme that serves as an affix, not as a base, or root, in word formation.
- fort leonard wood — a military reservation and U.S. Army training center in SW Missouri, SW of Rolla.
- fort walton beach — a city in NW Florida.
- fouquier-tinville — Antoine Quentin [ahn-twan kahn-tan] /ɑ̃ˈtwan kɑ̃ˈtɛ̃/ (Show IPA), 1747?–95, French revolutionist: prosecutor during the Reign of Terror.
- four on the floor — a four-speed manual transmission having the gearshift set into the floor.