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18-letter words containing a, l, t, i

  • electrostatic lens — an electron lens consisting of a system of metal electrodes, the electrostatic field of which focuses the charged particles
  • electrostatic unit — any unit that belongs to a system of electrical cgs units in which the electric constant is given the value of unity and is taken as a pure number
  • electrotherapeutic — Relating to electrotherapeutics.
  • elizabeth petrovna — 1709-62; empress of Russia (1741-62): daughter of Peter I
  • elizabethan sonnet — Shakespearean sonnet
  • emotional literacy — the ability to deal with one's emotions and recognize their causes
  • enantioselectivity — (chemistry) The selectivity of a reaction towards one of a pair of enantiomers.
  • entrepreneurialism — The spirit or state of acting in an entrepreneurial manner.
  • equinoctial circle — celestial equator
  • equinoctial spring — either of the two highest spring tides that occur at the equinoxes
  • equivalent circuit — an arrangement of simple electrical components that is electrically equivalent to a complex circuit and is used to simplify circuit analysis
  • established church — a Church that is officially recognized as a national institution, esp the Church of England
  • establishmentarian — Adhering to, advocating, or relating to the principle of an established church.
  • ethical investment — an investment in a company whose activities or products are not considered by the investor to be unethical
  • ethnomusicological — Relating to or pertaining to ethnomusicology.
  • ethnopsychological — Relating to ethnopsychology.
  • euclid's algorithm — (algorithm)   (Or "Euclidean Algorithm") An algorithm for finding the greatest common divisor (GCD) of two numbers. It relies on the identity gcd(a, b) = gcd(a-b, b) To find the GCD of two numbers by this algorithm, repeatedly replace the larger by subtracting the smaller from it until the two numbers are equal. E.g. 132, 168 -> 132, 36 -> 96, 36 -> 60, 36 -> 24, 36 -> 24, 12 -> 12, 12 so the GCD of 132 and 168 is 12. This algorithm requires only subtraction and comparison operations but can take a number of steps proportional to the difference between the initial numbers (e.g. gcd(1, 1001) will take 1000 steps).
  • evolution strategy — (ES) A kind of evolutionary algorithm where individuals (potential solutions) are encoded by a set of real-valued "object variables" (the individual's "genome"). For each object variable an individual also has a "strategy variable" which determines the degree of mutation to be applied to the corresponding object variable. The strategy variables also mutate, allowing the rate of mutation of the object variables to vary. An ES is characterised by the population size, the number of offspring produced in each generation and whether the new population is selected from parents and offspring or only from the offspring. ES were invented in 1963 by Ingo Rechenberg, Hans-Paul Schwefel at the Technical University of Berlin (TUB) while searching for the optimal shapes of bodies in a flow.
  • fall-back position — an alternative plan
  • false imprisonment — the unlawful restraint of a person from exercising the right to freedom of movement.
  • family-size packet — a packet large enough to be suitable for a family
  • family-tree theory — a theory that describes language change in terms of genetically related languages developing in successive splits from a common parent language, such as Indo-European, as depicted by a family tree diagram.
  • farewell-to-spring — a slender, showy plant, Clarkia amoena, of the evening primrose family, native to western North America, having satiny, cup-shaped, lilac-crimson or reddish-pink flowers and roundish fruit.
  • farmer in the dell — a game, accompanied by a song with several verses, in which one person, designated as the farmer, occupies the center of a circle of persons and is joined in the circle by other players designated as wife, child, nurse, cat, rat, and cheese, these then leaving the circle in order except for the one designated as cheese, who is left standing alone in the circle at the end.
  • feldenkrais method — a system of gentle movements that promote flexibility, coordination, and self-awareness
  • fermat's principle — Optics. the law that the path taken by a ray of light in going from one point to another point will be the path that requires the least time.
  • ferrite-rod aerial — a type of aerial, normally used in radio reception, consisting of a small coil of wire mounted on a ferrite core, the coil serving as a tuning inductance
  • fettuccine alfredo — fettuccine in cream sauce with grated Parmesan cheese.
  • fibrocartilaginous — a type of cartilage having a large number of fibers.
  • filename extension — (filename extension)   The portion of a filename, following the final point, which indicates the kind of data stored in the file - the file type. Many operating systems use filename extensions, e.g. Unix, VMS, MS-DOS, Microsoft Windows. They are usually from one to three letters (some sad old OSes support no more than three). Examples include "c" for C source code, "ps" for PostScript, "txt" for arbitrary text. Apart from informing the user what type of content the file holds, filename extensions are typically used to decide which program to launch when a file is "run", e.g. by double-clicking it in a GUI file browser. They are also used by Unix's make to determine how to build one kind of file from another. Compare: MIME type.
  • finite-dimensional — (of a vector space) having a basis consisting of a finite number of elements.
  • first class module — (programming)   A module that is a first class data object of the programming language, e.g. a record containing functions. In a functional language, it is standard to have first class programs, so program building blocks can have the same status.
  • fitzwilliam museum — a museum, attached to Cambridge University and founded in 1816, noted esp for its paintings and collections devoted to the applied arts
  • flash butt welding — a method of welding metal edge-to-edge with a powerful electric flash followed by the application of pressure.
  • flat file database — (database)   A database containing a single table, stored in a single flat file, often in a human-readable format such as comma-separated values or fixed-width columns.
  • flat-bottomed rail — a rail having a cross section like an inverted T, with the top extremity enlarged slightly to form the head
  • flat-panel display — a type of thin, lightweight video display that uses liquid crystals or electroluminescence to reflect images.
  • floating partition — a partition running parallel to and between two joists and resting on blocking between them.
  • floating underflow — underflow
  • floating-rate note — a eurobond, often issued as a negotiable bearer bond, that has a floating rate of interest
  • fly in the face of — to move through the air using wings.
  • forward compatible — forward compatibility
  • foundling hospital — an institutional home for foundlings.
  • fringe-toed lizard — an iguanid lizard, Uma notata, of sandy deserts of the western U.S. and Mexico, having a wedge-shaped snout and toes fringed with long, pointed scales.
  • from first to last — all the way through
  • fulminating powder — powder that explodes by percussion.
  • functional disease — a disease in which there is an abnormal change in the function of an organ, but no structural alteration in the tissues involved (opposed to organic disease).
  • functional program — (language)   A program employing the functional programming approach or written in a functional language.
  • functional testing — (testing)   (Or "black-box testing", "closed-box testing") The application of test data derived from functional requirements without regard to how the system is implemented.
  • gainful employment — an occupation that pays an income
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