17-letter words containing n, o, r, e, f
- four-on-the-floor — a four-speed manual transmission having the gearshift set into the floor.
- four-star general — high-ranking military officer
- 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].
- frames per second — (unit) (fps) The unit of measurement of the frame rate of a moving image.
- frankenstein food — any foodstuff that has been genetically modified
- fraternal society — a club or other association, usually of men, having a limited membership and devoted to professional, religious, charitable, or social activities.
- freewill offering — a voluntary religious contribution made in addition to what may be expected or required.
- freezer container — a rigid plastic container used to hold food that is to be frozen
- french provincial — noting, pertaining to, or resembling a style of furnishings and decoration originating in the provinces of France in the 18th century, derived from but less ornate than styles then current in Paris and featuring simply carved wood furniture, often with decorative curved moldings.
- french revolution — the revolution that began in 1789, overthrew the absolute monarchy of the Bourbons and the system of aristocratic privileges, and ended with Napoleon's overthrow of the Directory and seizure of power in 1799.
- french somaliland — a former name of Djibouti (def 1).
- frequency polygon — a frequency curve consisting of connected line segments formed by joining the midpoints of the upper edges of the rectangles in a histogram whose class intervals are of uniform length.
- friend of dorothy — a male homosexual
- front-end payment — a payment required or incurred in advance of a project in order to get it under way
- front-line player — a regular player on a sports team or one who plays in the farthest forward position
- front-wheel drive — a drive system in which engine power is transmitted through the front wheels only.
- frostbite sailing — the sport of sailing in temperate latitudes during the winter despite cold weather.
- full linear group — the group of all nonsingular linear transformations mapping a finite-dimensional vector space into itself.
- full load current — A full load current is the largest current that a motor or other device is designed to carry under particular conditions.
- functional isomer — any of several structural isomers that have the same molecular formula but with the atoms connected in different ways and therefore falling into different functional groups.
- further education — adult education.
- give free rein to — Often, reins. a leather strap, fastened to each end of the bit of a bridle, by which the rider or driver controls a horse or other animal by pulling so as to exert pressure on the bit.
- glory-of-the-snow — any of several plants belonging to the genus Chionodoxa, of the lily family, native to the Old World, having showy, blue, white, or pink flowers that bloom early in the spring.
- golf ball printer — IBM 2741
- graafian follicle — one of the small vesicles containing a developing ovum in the ovary of a mammal.
- grain of paradise — Usually, grains of paradise. one of the pungent, peppery seeds of an African plant, Aframomum melegueta, of the ginger family, used to strengthen cordials and in veterinary medicine.
- grandfather clock — a pendulum floor clock having a case as tall as or taller than a person; tall-case clock; long-case clock.
- greenhouse effect — an atmospheric heating phenomenon, caused by short-wave solar radiation being readily transmitted inward through the earth's atmosphere but longer-wavelength heat radiation less readily transmitted outward, owing to its absorption by atmospheric carbon dioxide, water vapor, methane, and other gases; thus, the rising level of carbon dioxide is viewed with concern.
- guinea-hen flower — checkered lily.
- gulf war syndrome — a group of symptoms occurring in some Gulf War veterans, most commonly including headache and memory loss, muscle pain, skin disorders, fatigue, sleep disturbances, and gastrointestinal and respiratory ailments, possibly caused by exposure to chemical weapons, vaccines, infectious diseases, or other factors.
- half-round chisel — a cold chisel with a semicircular cutting edge used for making narrow channels
- hall of residence — Halls of residence are buildings with rooms or flats, usually built by universities or colleges, in which students live during the term.
- have feelings for — to be emotionally or sexually attracted to
- have it in for sb — If someone has it in for you, they dislike you and try to cause problems for you.
- have no words for — to be incapable of describing
- heart of darkness — a short novel (1902) by Joseph Conrad.
- heat of formation — the heat evolved or absorbed when one mole of a compound is formed from its constituent atoms
- henry of portugal — ("the Navigator") 1394–1460, prince of Portugal: sponsor of geographic explorations.
- homo floresiensis — a possible species of very small, primitive human: its fossils were discovered on the Indonesian island of Flores in 2003.
- hydrogen fluoride — a colorless corrosive gas, HF, the anhydride of hydrofluoric acid, used chiefly as a catalyst and in the fluorination of hydrocarbons.
- hyperinflationary — (economics) Having very high levels of inflation.
- immunofluorescent — Of, pertaining to, or using immunofluorescence.
- impersonification — (archaic) the act of impersonating; impersonation.
- improper fraction — a fraction having the numerator greater than the denominator.
- in double figures — An amount or number that is in single figures is between zero and nine. An amount or number that is in double figures is between ten and ninety-nine. You can also say, for example, that an amount or number is in three figures when it is between one hundred and nine hundred and ninety-nine.
- in forma pauperis — as a poor person; i.e. without paying court costs
- in recognition of — If something is done in recognition of someone's achievements, it is done as a way of showing official appreciation of them.
- in the front line — Someone who is in the front line has to play a very important part in defending or achieving something.
- in the market for — an open place or a covered building where buyers and sellers convene for the sale of goods; a marketplace: a farmers' market.