12-letter words containing f, l, u, n
- exsufflation — (obsolete) A blast from beneath.
- fabulousness — almost impossible to believe; incredible.
- faithfulness — strict or thorough in the performance of duty: a faithful worker.
- fan vaulting — a system of fan vaults.
- fancifulness — The quality of being fanciful.
- faneuil hall — a market house and public hall in Boston, Massachusetts, called “the Cradle of Liberty” because it was used as a meeting place by American patriots immediately before the Revolutionary War.
- fardel-bound — (of ruminants) having the food impacted in the third compartment of the stomach; costive; constipated.
- fault-finder — a person who habitually finds fault, complains, or objects, especially in a petty way.
- faultfinding — the act of pointing out faults, especially faults of a petty nature; carping.
- felliniesque — referring to or reminiscent of the films of Federico Fellini
- fenfluramine — a sympathomimetic substance, C 12 H 16 F 3 N, formerly used mainly as an anorectic in the treatment of obesity but withdrawn from the market in 1997 because of its potential to cause valvular heart disease.
- fiber bundle — a flexible bundle of optical glass that transmits images.
- fifth column — a group of people who act traitorously and subversively out of a secret sympathy with an enemy of their country.
- final clause — a clause expressing intention or purpose
- fissilingual — having a forked tongue
- flammulation — a small flame-shaped marking, esp those seen on some birds
- flannelmouth — a person whose speech is thick, slow, or halting.
- flat-hunting — the activity of looking for a flat in which to live
- flexuousness — The state or condition of being flexuous.
- flight nurse — a nurse in the U.S. Air Force who tends patients being transported by airplane.
- flindermouse — (obsolete) A bat (the mammal).
- float around — A rumour or idea that is floating around is often heard or talked about.
- flocculating — Present participle of flocculate.
- flocculation — to form into flocculent masses.
- flourishment — The act or state of flourishing.
- flow country — an area of moorland and peat bogs in northern Scotland known for its wildlife, now partly afforested
- fluctuations — Plural form of fluctuation.
- fluidization — The act or process of fluidizing.
- fluoranthene — (organic compound) A polycyclic aromatic hydrocarbon consisting of a benzene ring attached to each of the rings of a naphthalene molecule; it is carcinogenic, and is a product of incomplete combustion.
- fluoresceine — Alternative spelling of fluorescein.
- fluorescence — the emission of radiation, especially of visible light, by a substance during exposure to external radiation, as light or x-rays. Compare phosphorescence (def 1).
- fluorescents — Plural form of fluorescent.
- fluoridating — Present participle of fluoridate.
- fluoridation — the addition of fluorides to the public water supply to reduce the incidence of tooth decay.
- fluorinating — Present participle of fluorinate.
- fluorination — (chemistry) The introduction of fluorine into a compound by means of a chemical reaction.
- fluorocarbon — any of a class of compounds produced by substituting fluorine for hydrogen in a hydrocarbon, and characterized by great chemical stability: used chiefly as a lubricant, refrigerant, fire extinguishing agent, and in industrial and other applications in which chemical, electrical, flame, and heat resistance is essential; banned as an aerosol propellant in the U.S. because of concern about ozone layer depletion.
- fluphenazine — a potent tranquilizer, C 22 H 26 F 3 N 3 OS, derived from phenothiazine and used in various forms for the management of certain neurological or psychotic disorders and for short-term treatment of acute anxiety.
- flusteration — (colloquial, dated) The act of flustering, or the state of being flustered.
- fluviomarine — of or formed by the combined action of river and sea.
- flux density — the magnetic, radiant, or electric flux per unit of cross-sectional area.
- flux linkage — the product of the magnetic flux and the number of turns in a given coil.
- flying lemur — either of two lemurlike mammals, Cynocephalus variegatus, of southeastern Asia and the East Indies, or C. volans, of the Philippines, having broad folds of skin on both sides of the body to aid in gliding from tree to tree: now rare.
- flying mouse — pygmy glider.
- flying squad — a trained, mobile group of police officers, business executives, labor officials, or the like, capable of performing specialized tasks whenever or wherever sent, often for use in emergencies.
- folding rule — a rule composed of light strips of wood joined by rivets so as to be foldable, all the opening and closing parts being in parallel planes.
- foot-poundal — a foot-pound-second unit of work or energy equal to the work done by a force of one poundal when its point of application moves through a distance of one foot in the direction of the force. Abbreviation: ft-pdl.
- forcefulness — full of force; powerful; vigorous; effective: a forceful plea for peace.
- forebuilding — (architecture,historical) An outer defense work of a castle used to protect the entrance to the keep.
- formula unit — (of an ionic compound that does not form molecules, as most salts) the chemical formula with the least number of elements out of the set of empirical formulas having the same proportion of ions as elements: NaCl is the formula unit for the ionic compound sodium chloride.