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12-letter words containing r, l, f

  • flourishment — The act or state of flourishing.
  • flow breccia — a volcanic breccia that has solidified from a lava flow.
  • flow control — (communications, protocol)   The collection of techniques used in serial communications to stop the sender sending data until the receiver can accept it. This may be either software flow control or hardware flow control. The receiver typically has a fixed size buffer into which received data is written as soon as it is received. When the amount of buffered data exceeds a "high water mark", the receiver will signal to the transmitter to stop transmitting until the process reading the data has read sufficient data from the buffer that it has reached its "low water mark", at which point the receiver signals to the transmitter to resume transmission.
  • flow country — an area of moorland and peat bogs in northern Scotland known for its wildlife, now partly afforested
  • flow pattern — The flow pattern is the way in which fluids move through a reactor.
  • flowcharting — (computing) the design and construction of flowcharts.
  • flower child — (especially in the 1960s) a young person, especially a hippie, rejecting conventional society and advocating love, peace, and simple, idealistic values.
  • flower power — Flower power is an old-fashioned way of referring to hippies and the culture associated with hippies in the late 1960s and early 1970s.
  • flowerpecker — any of numerous small, arboreal, usually brightly colored oscine birds of the family Dicaeidae, of southeastern Asia and Australia.
  • fluidextract — a liquid preparation, containing alcohol as a solvent or as a preservative, that contains in each cubic centimeter the medicinal activity of one gram of the crude drug in powdered form.
  • 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.
  • fluorapatite — a crystalline mineral, Ca 5 (PO 4) 3 F, formed from hydroxyapatite in the presence of fluoride, that has a hardening effect on bones and teeth.
  • 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.
  • fluorimeters — Plural form of fluorimeter.
  • fluorimetric — Alternative form of fluorometric.
  • 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.
  • fluorochrome — any of a group of fluorescent dyes used to label biological material.
  • fluorography — photofluorography.
  • fluorometers — Plural form of fluorometer.
  • fluorometric — Of, pertaining to, or measured using fluorometry.
  • fluoroscoped — Simple past tense and past participle of fluoroscope.
  • fluoroscopes — Plural form of fluoroscope.
  • fluoroscopic — of or relating to the fluoroscope or fluoroscopy.
  • fluorouracil — a pyrimidine analog, C 4 H 3 FN 2 O 2 , used in the treatment of certain cancers.
  • flusteration — (colloquial, dated) The act of flustering, or the state of being flustered.
  • flutter kick — a swimming kick in which the legs make rapid alternate up-and-down movements while the knees remain rigid, as in the crawl.
  • flutter mill — a flutter wheel, especially a small one designed as a child's plaything.
  • flutterballs — Plural form of flutterball.
  • flutterboard — a kickboard.
  • fluviomarine — of or formed by the combined action of river and sea.
  • fly in amber — a strange relic or reminder of the past
  • flyfisherman — Flyfisher.
  • flyfishermen — Plural form of flyfisherman.
  • 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 shear — (in a continuous rolling mill) a shear that moves with the piece being cut.
  • flying start — a start, as in sailboat racing, in which the entrants begin moving before reaching the starting line.
  • fm cyclotron — a type of cyclotron that synchronizes its accelerating voltage with particle velocity in order to compensate for the relativistic mass increase of the particle as it approaches the speed of light.
  • focus puller — the member of a camera crew who adjusts the focus of the lens as the camera is tracked in or out
  • folding door — a door with hinged sections that can be folded flat against one another when opened.
  • 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.
  • folkloristic — the traditional beliefs, legends, customs, etc., of a people; lore of a people.
  • followership — the ability or willingness to follow a leader.
  • food allergy — an allergy to a specific type of food
  • foolhardiest — Superlative form of foolhardy.
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