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16-letter words containing t, o, r, f

  • distrito federal — Federal District. Abbreviation: D.F.
  • diversifications — Plural form of diversification.
  • do-it-yourselfer — an advocate or enthusiast of do-it-yourself
  • documentary film — factual, informative film
  • dolce far niente — pleasing inactivity.
  • dome of the rock — a shrine in Jerusalem at the site from which Muhammad ascended through the seven heavens to the throne of God: built on the site of the Jewish Temple.
  • dorothy canfield — Dorothy, Fisher, Dorothy Canfield.
  • drag coefficient — a measure of the drag of an object in a moving fluid, esp air
  • drift transistor — a transistor in which the impurity concentration in the base increases from the collector-base junction to the emitter-base junction, producing a resistivity gradient that greatly increases its high-frequency response
  • east coast fever — a disease of cattle, endemic in east and central Africa, caused by a parasite, Theileria parva, that is carried by ticks
  • electronic flash — Photography
  • extrinsic factor — vitamin B12
  • face recognition — the ability of a computer to scan, store, and recognize human faces for use in identifying people
  • factor of safety — the ratio of the maximum stress that a structural part or other piece of material can withstand to the maximum stress estimated for it in the use for which it is designed.
  • fair to middling — free from bias, dishonesty, or injustice: a fair decision; a fair judge.
  • farewell to arms — a novel (1929) by Ernest Hemingway.
  • farmington hills — a city in SE Michigan.
  • fashion industry — the industry that deals with the world of fashion
  • father confessor — confessor (def 2).
  • father-surrogate — a male who replaces an absent father and becomes an object of attachment.
  • federation wheat — an early-maturing drought-resistant variety of wheat developed by William Farrar in 1902
  • feedback control — (electronics)   A control system which monitors its effect on the system it is controlling and modifies its output accordingly. For example, a thermostat has two inputs: the desired temperature and the current temperature (the latter is the feedback). The output of the thermostat changes so as to try to equalise the two inputs. Computer disk drives use feedback control to position the read/write heads accurately on a recording track. Complex systems such as the human body contain many feedback systems that interact with each other; the homeostasis mechanisms that control body temperature and acidity are good examples.
  • feel constrained — If you feel constrained to do something, you feel that you must do it, even though you would prefer not to.
  • feel-good factor — When journalists refer to the feel-good factor, they mean that people are feeling hopeful and optimistic about the future.
  • fellow traveller — a companion on a journey
  • feme-sole trader — a married woman who is entitled to carry on business on her own account and responsibility, independently of her husband.
  • fermat's theorem — the theorem that an integer raised to a prime power leaves the same remainder as the integer itself when divided by the prime.
  • ferroelectricity — (physics) The electric polarization of a substance (spontaneous presence of a dipole moment) that is analagous to ferromagnetism.
  • ferrous sulphate — an iron salt with a saline taste, usually obtained as greenish crystals of the heptahydrate, which are converted to the white monohydrate above 100°C: used in inks, tanning, water purification, and in the treatment of anaemia. Formula: FeSO4
  • fertility factor — a sex-determining chromosome or gene.
  • fertility symbol — an object, esp a phallic symbol, used in fertility-cult ceremonies to symbolize regeneration
  • feulgen reaction — a reaction in which an aldehyde combines with a modified Schiff's reagent to produce a purplish compound: used especially to test for the presence of DNA
  • fictitious force — any force that is postulated to account for apparent deviations from Newton's laws of motion appearing in an accelerated reference system.
  • fifth-generation — denoting developments in computer design to produce machines with artificial intelligence
  • filter promotion — (algorithm)   In a generate and test algorithm, combining part of the filter with the generator in order to reduce the number of potential solutions generated. A trivial example: filter (< 100) [1..1000] ==> [1..99] where [1..n] generates the list of integers from 1 to n. Here the filter has been combined completely with the generator. This is an example of fusion.
  • finance director — financial manager
  • find favour with — to be approved of by someone
  • finished product — the product that emerges at the end of a manufacturing process
  • fire regulations — rules intended to make sure that people and property stay safe in the event of a fire
  • fire-tube boiler — any boiler for generating steam by passing hot gases and other combustible products through tubes (fire tubes) immersed in water to a chimney or uptake.
  • first four ships — the earliest settlers' ships to arrive in the Canterbury Province
  • first generation — 1.   (architecture)   first generation computer. 2.   (language)   first generation language.
  • first-aid worker — someone who is trained to give immediate medical help in an emergency
  • first-generation — being the first generation of a family to be born in a particular country.
  • fish or cut bait — any of various cold-blooded, aquatic vertebrates, having gills, commonly fins, and typically an elongated body covered with scales.
  • fisherman's knot — a knot for joining two ropes of equal thickness consisting of an overhand knot or double overhand knot by each rope round the other, so that the two knots jam when pulled tight
  • fissure eruption — the emergence of lava from a fissure in the ground rather than from a volcanic cone or vent
  • flabbergastation — (colloquial) Bewildered shock or surprise; the state or condition of being flabbergasted.
  • flame cultivator — an implement that kills weeds by scorching them with a directed flow of flaming gas.
  • flash eliminator — a device fitted to the muzzle of a firearm to reduce the flash made by the ignited propellant gases
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