17-letter words containing t, o, s, l
- doorstep salesman — a door-to-door salesman
- double gloucester — a type of smooth orange-red cheese of mild flavour
- double insulation — Double insulation is insulation that consists of both basic insulation and supplementary insulation.
- douglas engelbart — (person) Douglas C. Engelbart, the inventor of the mouse. On 1968-12-09, Douglas C. Engelbart and the group of 17 researchers working with him in the Augmentation Research Center at Stanford Research Institute in Menlo Park, California, USA, presented a 90-minute live public demonstration of the on live system, NLS, they had been working on since 1962. The presentation was a session in the of the Fall Joint Computer Conference held at the Convention Center in San Francisco, and it was attended by about 1000 computer professionals. This was the public debut of the computer mouse, hypertext, object addressing, dynamic file linking and shared-screen collaboration involving two persons at different sites communicating over a network with audio and video interface. The original 90-minute video: Hyperlinks, Mouse, Web-board.
- douglas macarthur — Douglas, 1880–1964, U.S. general: supreme commander of allied forces in SW Pacific during World War II and of UN forces in Korea 1950–51.
- down-at-the-heels — of a shabby, run-down appearance; seedy: He is rapidly becoming a down-at-heel drifter and a drunk.
- east indian lotus — a southern Asian lotus, Nelumbo nucifera, of the water lily family, having fragrant pink or rose flowers.
- elastic stockings — something made of elastic which you wear on your legs to aid circulation
- electric constant — the permittivity of free space, which has the value 8.854 187 × 10–12 farad per metre
- electroanesthesia — Anesthesia induced by cranial electrotherapy stimulation.
- electroconvulsive — Of or relating to the treatment of mental illness by the application of electric shocks to the brain.
- electrodeposition — The deposition of a metal on a cathode during electrolysis; used as a method of purification.
- electrophysiology — The branch of physiology that deals with the electrical phenomena associated with nervous and other bodily activity.
- electropositivity — (uncountable) the condition of being electropositive.
- electrostatically — In an electrostatic manner, by electrostatic means.
- elementary school — primary school
- employee benefits — benefits, such as health insurance, pension payments, or childcare, given to employees in addition to their usual salary or wage
- employee discount — When the employees of a store or other retail business are entitled to an employee discount, they do not have to pay the full price for goods they buy in the store.
- encephalomyelitis — Inflammation of the brain and spinal cord, typically due to acute viral infection.
- enlarged prostate — disorder of male reproductive gland
- enrolment figures — the numbers of people enrolling at an institution, on a course, etc
- environmentalists — Plural form of environmentalist.
- epistemologically — In a manner that pertains to epistemology.
- establishing shot — Cinema
- ethinyloestradiol — Alternative form of ethinylestradiol.
- ethnomusicologist — A researcher in the field of ethnomusicology.
- excess employment — excessive numbers of employees for the amount of work available
- extrasolar planet — any other celestial body revolving around a star, illuminated by light from that star
- facsimile catalog — a catalog that includes small reproductions of the items listed, as paintings, slides, designs, or the like.
- field post office — a place to which mail intended for military units in the field is sent to be sorted and forwarded
- first call on sth — If you have first call on something, you will be asked before anyone else whether you want to buy or use it.
- first normal form — database normalisation
- first-loss policy — an insurance policy for goods in which a total loss is extremely unlikely and the insurer agrees to provide cover for a sum less than the total value of the property
- first-order logic — (language, logic) The language describing the truth of mathematical formulas. Formulas describe properties of terms and have a truth value. The following are atomic formulas: True False p(t1,..tn) where t1,..,tn are terms and p is a predicate. If F1, F2 and F3 are formulas and v is a variable then the following are compound formulas: The "order" of a logic specifies what entities "For all" and "Exists" may quantify over. First-order logic can only quantify over sets of atomic propositions. (E.g. For all p . p => p). Second-order logic can quantify over functions on propositions, and higher-order logic can quantify over any type of entity. The sets over which quantifiers operate are usually implicit but can be deduced from well-formedness constraints. In first-order logic quantifiers always range over ALL the elements of the domain of discourse. By contrast, second-order logic allows one to quantify over subsets.
- flash photography — photography using a momentary flash of artificial light as a source of illumination.
- florentine stitch — a straight stitch worked in a high and low relief pattern to form a variety of zigzag or oblique designs.
- fluorescent light — a fluorescent lamp in domestic or commercial use; a fluorescent strip
- fluorescent strip — a fluorescent light in the form of a long strip
- fluvioterrestrial — (of animals) able to live in rivers and on land
- follow the hounds — to hunt a fox, etc. on horseback with hounds
- footmen's gallery — the rearmost section of seats in the balcony of an English theater, especially in the late 17th and early 18th centuries.
- fore-and-aft sail — any of various sails, as jib-headed sails, gaff sails, lugsails, lateen sails, spritsails, staysails, and jibs, that do not set on yards and whose normal position, when not trimmed, is in a fore-and-aft direction amidships.
- foreign relations — (used with a singular verb) the field of foreign affairs: an expert in foreign relations.
- four-letter words — any of a number of short words, usually of four letters, considered offensive or vulgar because of their reference to excrement or sex.
- four-star general — high-ranking military officer
- four-stroke cycle — A four-stroke cycle is the cycle of engine operation which requires four strokes of the piston: for induction, compression, ignition, and exhaust.
- fractal dimension — (mathematics) A common type of fractal dimension is the Hausdorff-Besicovich Dimension, but there are several different ways of computing fractal dimension. Fractal dimension can be calculated by taking the limit of the quotient of the log change in object size and the log change in measurement scale, as the measurement scale approaches zero. The differences come in what is exactly meant by "object size" and what is meant by "measurement scale" and how to get an average number out of many different parts of a geometrical object. Fractal dimensions quantify the static *geometry* of an object. For example, consider a straight line. Now blow up the line by a factor of two. The line is now twice as long as before. Log 2 / Log 2 = 1, corresponding to dimension 1. Consider a square. Now blow up the square by a factor of two. The square is now 4 times as large as before (i.e. 4 original squares can be placed on the original square). Log 4 / log 2 = 2, corresponding to dimension 2 for the square. Consider a snowflake curve formed by repeatedly replacing ___ with _/\_, where each of the 4 new lines is 1/3 the length of the old line. Blowing up the snowflake curve by a factor of 3 results in a snowflake curve 4 times as large (one of the old snowflake curves can be placed on each of the 4 segments _/\_). Log 4 / log 3 = 1.261... Since the dimension 1.261 is larger than the dimension 1 of the lines making up the curve, the snowflake curve is a fractal. [sci.fractals FAQ].
- fraternal society — a club or other association, usually of men, having a limited membership and devoted to professional, religious, charitable, or social activities.
- frostbite sailing — the sport of sailing in temperate latitudes during the winter despite cold weather.
- fulgencio batista — Fulgencio [fool-hen-syaw] /fulˈhɛn syɔ/ (Show IPA), (Fulgencio Batista y Zaldívar) 1901–73, Cuban military leader: dictator of Cuba 1934–40; president 1940–44, 1952–59.