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20-letter words containing r, s, f

  • restriction fragment — a length of DNA cut from the strand by a restriction enzyme.
  • roof over one's head — If you have a roof over your head, you have somewhere to live.
  • royal air force list — an official list of all serving commissioned officers of the RAF and reserve officers liable for recall
  • saint anthony's fire — any of certain skin conditions that are of an inflammatory or gangrenous nature, as erysipelas, hospital gangrene, or ergotism.
  • sarcastic fringehead — any fish of the genus Neoclinus, characterized by a row of fleshy processes on the head, as N. blanchardi (sarcastic fringehead) of California coastal waters.
  • 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.
  • second earl of essex — 2nd Earl of, Devereux, Robert.
  • self-differentiating — to form or mark differently from other such things; distinguish.
  • senior aircraftwoman — a rank in the Royal Air Force comparable to that of a private in the army, though not the lowest rank in the Royal Air Force
  • separation of powers — the principle or system of vesting in separate branches the executive, legislative, and judicial powers of a government.
  • sergeant first class — a noncommissioned officer ranking next above a staff sergeant and below a first or master sergeant.
  • serious fraud office — a UK government office responsible for investigating and prosecuting serious fraud cases
  • shear transformation — a map of a coordinate space in which one coordinate is held fixed and the other coordinate or coordinates are shifted.
  • sinfonia concertante — a type of concerto for two or more solo instruments accompanied by an orchestra
  • sing for your supper — If someone has to sing for their supper, they have to do a job before they are allowed to do something they want to do.
  • small craft advisory — a U.S. National Weather Service advisory of sustained winds, over coastal and inland waters, with speeds of 20–33 knots (23–38 mph, 10–17 m/sec). Regional NWS offices have discretion over the choice of the lower limit.
  • 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
  • snows of kilimanjaro — a short story (1936) by Ernest Hemingway.
  • sodium fluoroacetate — a white, amorphous, water-soluble, poisonous powder, C 2 H 2 FO 2 Na, used as a rodenticide.
  • software engineering — the process of writing computer programs
  • software methodology — (programming)   The study of how to navigate through each phase of the software process model (determining data, control, or uses hierarchies, partitioning functions, and allocating requirements) and how to represent phase products (structure charts, stimulus-response threads, and state transition diagrams).
  • soke of peterborough — a former administrative unit of E central England, generally considered part of Northamptonshire or Huntingdonshire: absorbed into Cambridgeshire in 1974
  • solitary confinement — the confinement of a prisoner in a cell or other place in which he or she is completely isolated from others.
  • span of apprehension — the maximum number of objects that can be correctly assessed after a brief presentation
  • spanish west african — of or relating to the former Spanish overseas territory of Spanish West Africa (now the overseas provinces of Ifni and Spanish Sahara) or its inhabitants
  • specific performance — (especially in the sale of land) literal compliance with one's contractual promises pursuant to a judicial mandate.
  • spiral of archimedes — a curve that is the locus of a point that moves outward with uniform speed along a vector, beginning at the origin, while the vector rotates about the origin with uniform angular velocity. Equation (in polar coordinates): r = aθ.
  • spirit of enterprise — the motivation to set up and succeed in business or commerce
  • spirits of hartshorn — a colorless, pungent, suffocating, aqueous solution of about 28.5 percent ammonia gas: used chiefly as a detergent, for removing stains and extracting certain vegetable coloring agents, and in the manufacture of ammonium salts.
  • split the difference — the state or relation of being different; dissimilarity: There is a great difference between the two.
  • spread like wildfire — If something, especially news or a rumour, spreads like wildfire, it spreads extremely quickly.
  • square of opposition — a diagrammatic representation of the opposition of categorical propositions.
  • squirrel's-foot fern — ball fern.
  • staff sergeant major — a noncommissioned officer equivalent in rank to a command sergeant major but having no command responsibility.
  • stare sb in the face — If a situation or the answer to a problem is staring you in the face, it is very obvious, although you may not be immediately aware of it.
  • states of the church — Papal States
  • strike off the rolls — to expel from membership
  • strong nuclear force — an interaction between elementary particles responsible for the forces between nucleons in the nucleus. It operates at distances less than about 10–15 metres, and is about a hundred times more powerful than the electromagnetic interaction
  • surface-active agent — any substance that when dissolved in water or an aqueous solution reduces its surface tension or the interfacial tension between it and another liquid.
  • symmetric difference — the union of the relative complements of two sets.
  • the course of nature — the ordinary course of events
  • the eye of the storm — If you say that someone or something is at the eye of the storm, you mean they are the main subject of a public disagreement.
  • the founding fathers — any of the men who were members of the U.S. Constituional Convention of 1787
  • the gnomes of zurich — Swiss bankers and financiers
  • the legal profession — the profession of law
  • the price of someone — what someone deserves, esp a fitting punishment
  • the way of the cross — a series of images in a church or along a road to a church etc depicting the last hours of Christ
  • the-comedy-of-errors — an early comedy (1594) by Shakespeare.
  • 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.
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