19-letter words containing f, l, u, r
- flannelmouth sucker — a sucker, Catostomus latipinnis, of the Colorado River and its tributaries.
- floating restaurant — a boat or ship that has been converted for use as a restaurant
- fluophosphoric acid — fluorophosphoric acid.
- fluoride toothpaste — toothpaste containing a small amount of fluoride as protection against tooth decay
- focal plane shutter — an opaque shield in a camera, lying in the focal plane of the lens, that, when tripped, admits light to expose the film or plate for a predetermined period, usually a fraction of a second
- focal-plane shutter — a camera shutter situated directly in front of the film.
- follow-up interview — a second interview following an initial interview
- for crying out loud — exasperation
- foregone conclusion — an inevitable conclusion or result.
- four colour theorem — four colour map theorem
- four eyes principle — the requirement that a business transaction be approved by at least two individuals
- four-o'clock family — the plant family Nyctaginaceae, characterized by chiefly tropical herbaceous plants and shrubs having colored, petallike bracts beneath petalless flowers and winged or grooved dry fruit, and including the bougainvillea and four-o'clock.
- fractional currency — coins or paper money of a smaller denomination than the basic monetary unit.
- fraternal insurance — insurance underwritten by a fraternal society, under either a legal reserve plan or an assessment plan.
- free alongside quay — (of a shipment of goods) delivered to the quay without charge to the buyer
- full-wave rectifier — a rectifier that transmits both halves of a cycle of alternating current as a direct current.
- functional currency — Functional currency is the main currency used by a business.
- godfrey of bouillon — (Duke of Lower Lorraine) 1060?–1100, French leader of the First Crusade 1096–99.
- greenhouse whitefly — See under whitefly.
- guerrilla financing — the use of unconventional and marginally legal means to capitalize enterprises
- gulf of carpentaria — a shallow inlet of the Arafura Sea, in N Australia between Arnhem Land and Cape York Peninsula
- hexafluoroplatinate — (chemistry) The univalent anion PtF6- prepared by reacting platinum hexafluoride with certain metals or other elements.
- house of councilors — the upper house of the Japanese diet.
- house of ill repute — a house of prostitution; whorehouse; brothel.
- hyperbolic function — a function of an angle expressed as a relationship between the distances from a point on a hyperbola to the origin and to the coordinate axes, as hyperbolic sine or hyperbolic cosine: often expressed as combinations of exponential functions.
- incomplete fracture — a fracture extending partly across the bone.
- isidorus of miletus — flourished 6th century a.d, Byzantine engineer. He was one of the architects of Hagia Sophia; (originally an Orthodox cathedral and currently a museum in Istanbul, Turkey).
- jacques montgolfier — Jacques Étienne [zhahk ey-tyen] /ʒɑk eɪˈtyɛn/ (Show IPA), 1745–99, and his brother Joseph Michel [zhaw-zef mee-shel] /ʒɔˈzɛf miˈʃɛl/ (Show IPA) 1740–1810, French aeronauts: inventors of the first practical balloon 1783.
- judicial conference — a conference of judges held to discuss improvements in methods or judicial procedure through court rules or otherwise.
- lagrangian function — kinetic potential.
- land of opportunity — Arkansas (used as a nickname).
- landrum-griffin act — an act of Congress (1959) outlawing secondary boycotts, requiring public disclosure of the financial records of unions, and guaranteeing the use of secret ballots in union voting.
- left-luggage locker — a coin-operated locker in which luggage can be left
- life-support system — A life-support system is the same as a life-support machine.
- lift the curtain on — to begin
- limit of resolution — the capacity of an optical system to resolve point objects as separate images.
- malice aforethought — a predetermination to commit an unlawful act without just cause or provocation (applied chiefly to cases of first-degree murder).
- manufacturing plant — factory
- modulus of rigidity — shear modulus.
- negation by failure — An extralogical feature of Prolog and other logic programming languages in which failure of unification is treated as establishing the negation of a relation. For example, if Ronald Reagan is not in our database and we asked if he was an American, Prolog would answer "no".
- nonforfeiture value — any benefit, as cash or other form of insurance, available to a life-insurance policyholder who discontinues premium payments on the policy.
- not for much longer — if something will not happen for much longer, it will soon stop happening
- oriental fruit moth — a moth, Grapholitha molesta, introduced into the U.S. from Asia, the larvae of which infest and feed on the twigs and fruits of peach, plum, and related trees.
- parainfluenza virus — any of a group of viruses that cause respiratory infections with influenza-like symptoms, esp in children
- peroxysulfuric acid — persulfuric acid (def 1).
- persian gulf states — group of Arab sheikdoms along the Persian Gulf: Kuwait, Bahrain, Qatar, & United Arab Emirates
- pillars of hercules — the two promontories at the E end of the Strait of Gibraltar: the Rock of Gibraltar on the European side and the Jebel Musa on the African side; according to legend, formed by Hercules
- production platform — offshore power station
- profitability study — a study of how much profit a company, organization, etc, makes or how profitable it is
- pseudo-professional — following an occupation as a means of livelihood or for gain: a professional builder.