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20-letter words containing f, i, l, e, t, r

  • northern leaf blight — a disease of corn caused by the fungus Exsherohilum turcicum, characterized by elongate tan-gray elliptical spots with subsequent blighting and necrosis of leaves.
  • official secrets act — law: legislation protecting state secret
  • olfactory anesthesia — absence or loss of the sense of smell.
  • order of the thistle — an ancient Scottish order of knighthood revived by James VII of Scotland in 1687. It consists of the sovereign, 16 knights brethren, and extra members created by statute. It is the equivalent of the Order of the Garter, and is usually conferred on Scots
  • paper qualifications — qualifications gained through official examinations, etc, rather than through experience
  • parallel of altitude — almucantar.
  • parallel of latitude — parallel (def 9).
  • parametric amplifier — a device, as an electron tube or transistor, that amplifies a high-frequency input signal by sinusoidally varying the reactance of the circuit.
  • partial differential — an expression obtained from a given function of several variables by taking the partial derivative with respect to one of the variables and multiplying by the increment in that variable.
  • period of revolution — a rather large interval of time that is meaningful in the life of a person, in history, etc., because of its particular characteristics: a period of illness; a period of great profitability for a company; a period of social unrest in Germany.
  • pest control officer — a person who gets rid of pests such as rats and mice
  • photoelectric effect — the phenomenon in which the absorption of electromagnetic radiation, as light, of sufficiently high frequency by a surface, usually metallic, induces the emission of electrons from the surface.
  • piezoelectric effect — the property exhibited by some nonconducting crystals of becoming electrically polarized when mechanically strained and of becoming mechanically strained when an electric field is applied.
  • portfolio employment — the practice of working for several employers simultaneously rather than working full-time for a single employer
  • post office protocol — (messaging, protocol)   (POP) A protocol designed to allow single-user computers to retrieve electronic mail from a POP server via TCP/IP. The default port is 110. The POP server might be a computer with a permanent Internet connection whereas its clients might only connect to it occasionally, e.g. by modem. There are (in 1994) three versions: POP, POP2, and POP3. Later versions are NOT compatible with earlier ones.
  • potential difference — voltage
  • prefecture apostolic — a territory in the early stage of missionary development.
  • quantum field theory — any theory in which fields are treated by the methods of quantum mechanics; each field can then be regarded as consisting of particles of a particular kind, which may be created and annihilated.
  • reflecting telescope — an optical instrument for making distant objects appear larger and therefore nearer. One of the two principal forms (refracting telescope) consists essentially of an objective lens set into one end of a tube and an adjustable eyepiece or combination of lenses set into the other end of a tube that slides into the first and through which the enlarged object is viewed directly; the other form (reflecting telescope) has a concave mirror that gathers light from the object and focuses it into an adjustable eyepiece or combination of lenses through which the reflection of the object is enlarged and viewed. Compare radio telescope.
  • refracting telescope — an optical instrument for making distant objects appear larger and therefore nearer. One of the two principal forms (refracting telescope) consists essentially of an objective lens set into one end of a tube and an adjustable eyepiece or combination of lenses set into the other end of a tube that slides into the first and through which the enlarged object is viewed directly; the other form (reflecting telescope) has a concave mirror that gathers light from the object and focuses it into an adjustable eyepiece or combination of lenses through which the reflection of the object is enlarged and viewed. Compare radio telescope.
  • refuse disposal unit — a unit or part of a sink that disposes of waste food, etc, by grinding
  • ring of the nibelung — Richard Wagner's tetralogy of music dramas: Das Rheingold (completed 1869), Die Walküre (completed 1870), Siegfried (completed 1876), and Götterdämmerung (completed 1876): the cycle was first performed at Bayreuth, 1876.
  • royal air force list — an official list of all serving commissioned officers of the RAF and reserve officers liable for recall
  • sb's future lies swh — If you say that someone's future lies in a particular place or activity, you think they will be most successful or happy in that place or doing that activity.
  • self-differentiating — to form or mark differently from other such things; distinguish.
  • sergeant first class — a noncommissioned officer ranking next above a staff sergeant and below a first or master sergeant.
  • snowflake generation — the generation of people who became adults in the 2010s, viewed as being less resilient and more prone to taking offence than previous generations
  • sodium fluoroacetate — a white, amorphous, water-soluble, poisonous powder, C 2 H 2 FO 2 Na, used as a rodenticide.
  • solitary confinement — the confinement of a prisoner in a cell or other place in which he or she is completely isolated from others.
  • split the difference — the state or relation of being different; dissimilarity: There is a great difference between the two.
  • squirrel's-foot fern — ball fern.
  • strike off the rolls — to expel from membership
  • the legal profession — the profession of law
  • theory of relativity — relativity (def 2).
  • there is no call for — If you say that there is no call for someone to behave in a particular way, you are criticizing their behaviour, usually because you think it is rude.
  • theresa of avila, st — Saint. Also, Teresa. Also called Theresa of Avila [ah-vee-lah] /ˈɑ viˌlɑ/ (Show IPA), 1515–82, Spanish Carmelite nun, mystic, and writer.
  • thorn in one's flesh — a sharp excrescence on a plant, especially a sharp-pointed aborted branch; spine; prickle.
  • to burst into flames — If something bursts into flames or bursts into flame, it suddenly starts burning strongly.
  • treaty of versailles — the treaty of 1919 imposed upon Germany by the Allies (except for the US and the Soviet Union): the most important of the five peace treaties that concluded World War I
  • unemployment figures — statistics relating to the number of people who are out of work
  • unified field theory — electroweak theory.
  • universal quantifier — a quantifier indicating that the sentential function within its scope is true for all values of any variable included in the quantifier.
  • until further notice — If a situation is said to exist until further notice, it will continue for an uncertain length of time until someone changes it.
  • upper yosemite falls — a section of Yosemite Falls in central California, in the Yosemite National Park that is 436 m (1430 ft) high
  • vertical lift bridge — lift bridge.
  • viscount northcliffe — Viscount, Alfred Charles William Harmsworth.
  • walk-in refrigerator — a refrigerated storage room, as at a butcher shop.
  • war of the rebellion — American Civil War.
  • wardrobe malfunction — an embarrassing situation caused by the clothes a person is wearing
  • warehouse facilities — places for storing goods
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