17-letter words containing s, t, e, r, i
- 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.
- elliptical spring — An elliptical spring is a spring that is made from two springs in the shape of elongated ovals laid cut in half and back-to-back.
- emergency rations — food and drink that is designated for use in an emergency: for example, in a famine, after a plane crash, when hill-walkers or mountaineers are stranded, etc.
- emission spectrum — the continuous spectrum or pattern of bright lines or bands seen when the electromagnetic radiation emitted by a substance is passed into a spectrometer. The spectrum is characteristic of the emitting substance and the type of excitation to which it is subjected
- emissions trading — the buying and selling of allowances for pollutant emissions
- english breakfast — An English breakfast is a breakfast consisting of cooked food such as bacon, eggs, sausages, and tomatoes. It also includes toast and tea or coffee.
- enrolment figures — the numbers of people enrolling at an institution, on a course, etc
- environmentalists — Plural form of environmentalist.
- esprit d'escalier — clever repartee one thinks of too late
- ethinyloestradiol — Alternative form of ethinylestradiol.
- experimental lisp — (language) (xlisp) An experimental programming language combining a subset of Common Lisp with an object-oriented extension capability (Class and Object types). It was implemented by David Micheal Betz at Apple to allow experimentation with object-oriented programming on small computers. The C source code has been ported to Unix, Microsoft Windows, Macintosh, Amiga, Atari, and MS-DOS. Version 2.1 of the interpreter, by Tom Almy is closer to Common Lisp. E-mail: Tom Almy <[email protected]>.
- extension courses — courses offered to outsiders by an educational establishment
- extraordinariness — The property of being extraordinary.
- extraterrestrials — Plural form of extraterrestrial.
- factory inspector — a person who inspects factories
- facts and figures — details; precise information
- faint-heartedness — lack of courage
- fairness doctrine — a policy mandated by the Federal Communications Commission, requiring radio and television stations to grant equal time to a political candidate, group, etc., to present an opposing viewpoint to one already aired.
- false bread-fruit — ceriman.
- father substitute — a male who replaces an absent father and becomes an object of attachment.
- feathered friends — Birds are sometimes referred to as our feathered friends.
- fictitious person — a legal entity or artificial person, as a corporation.
- financial futures — futures in a stock-exchange index, currency exchange rate, or interest rate enabling banks, building societies, brokers, and speculators to hedge their involvement in these markets
- fire extinguisher — a portable container, usually filled with special chemicals for putting out a fire.
- fire-extinguisher — a portable container, usually filled with special chemicals for putting out a fire.
- first commandment — “Thou shalt have no other gods before me”: first of the Ten Commandments.
- first performance — the first time that a play or concert is performed
- first triumvirate — the political alliance of Caesar, Crassus, and Pompey, formed in 60 bc
- first-aid classes — classes which teach people how to give immediate medical help in an emergency
- first-degree burn — a burned place or area: a burn where fire had ripped through the forest.
- 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.
- fish out of water — any of various cold-blooded, aquatic vertebrates, having gills, commonly fins, and typically an elongated body covered with scales.
- fitness programme — a plan to help someone improve their health and physical condition
- flickertail state — North Dakota (used as a nickname).
- flight instrument — any instrument used to indicate the altitude, attitude, airspeed, drift, or direction of an aircraft.
- 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
- 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.
- foreign secretary — foreign minister.
- forest enterprise — a British government department responsible for maintaining and expanding forests
- foundation course — A foundation course is a course that you do at some colleges and universities in order to prepare yourself for a longer or more advanced course.
- fourier transform — a mapping of a function, as a signal, that is defined in one domain, as space or time, into another domain, as wavelength or frequency, where the function is represented in terms of sines and cosines.
- 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].