17-letter words containing f, i, l, t, r, a
- differentiability — The ability to be differentiated.
- differential gear — differential (def 7).
- differential line — (hardware) A kind of electrical connection using two wires, one of which carries the normal signal (V) and the other carries an inverted version the signal (-V). A differential amplifier at the receiver subtracts the inverted signal from the normal signal to yield a signal proportional to V. This subtraction is intended to cancel out any noise induced in the wires, on the assmption that the same level of noise will have been induced in both wires. Twisted pair wiring is often used to try to ensure that this is the case. The two wires might be connected at the receiver to separate analogue to digital converters and the subtraction performed digitally. The RS-422 serial line standard specifies differential drivers and receivers, whereas the earlier RS-232 standard does not. Opposite: single ended.
- differential rate — a special lower rate, as one charged by one of two or more competing businesses.
- differential tone — a musical sound sometimes heard when two loud notes are sounded together, lower in pitch than either
- digital footprint — one's unique set of digital activities, actions, and communications that leave a data trace on the Internet or on a computer or other digital device and can identify the particular user or device: Our online browsing habits are part of our passive digital footprint, created without our consent or knowledge, but our active digital footprint, especially on social media, can more easily be managed. Compare footprint (def 4).
- dimethylformamide — a colourless liquid widely used as a solvent and sometimes as a catalyst. Formula: (CH3)2NCHO
- double quatrefoil — a charge having the form of a foil with eight leaves, used especially as the cadency mark of a ninth son.
- double refraction — the separation of a ray of light into two unequally refracted, plane-polarized rays of orthogonal polarizations, occurring in crystals in which the velocity of light rays is not the same in all directions.
- drilling platform — a structure, either fixed to the sea bed or mobile, which supports the machinery and equipment (the drilling rig), together with the stores, required for digging an offshore oil well
- edward fitzgerald — Edward, 1809–83, English poet: translator of drama and poetry, especially of Omar Khayyám.
- electrical fitter — someone whose job is to fit electrical equipment
- electrofiltration — Electrofiltration is a separation process in which an electric field is applied across a filter to improve separation.
- electron affinity — a measure of the ability of an atom or molecule to form a negative ion, expressed as the energy released when an electron is attached
- 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.
- exfoliating cream — a granular cosmetic preparation that removes dead cells from the skin's surface
- fair market value — The fair market value of an asset is what a willing buyer would pay a willing seller for it on the open market.
- false bread-fruit — ceriman.
- farthingale chair — an English chair of c1600 having no arms, a straight and low back, and a high seat.
- fear and loathing — (Hunter S. Thompson) A state inspired by the prospect of dealing with certain real-world systems and standards that are totally brain-damaged but ubiquitous - Intel 8086s, COBOL, EBCDIC, or any IBM machine except the Rios (also known as the RS/6000).
- feint-ruled paper — writing paper with light horizontal lines printed across at regular intervals
- felix frankfurter — Felix, 1882–1965, U.S. jurist, born in Austria: associate justice of the U.S. Supreme Court 1939–62.
- fermentation lock — a valve placed on the top of bottles of fermenting wine to allow bubbles to escape
- ferrimagnetically — In a ferrimagnetic manner.
- ferroelectric ram — Ferroelectric Random Access Memory
- fifth normal form — database normalisation
- 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
- fingerling potato — a finger-shaped potato
- 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-aid classes — classes which teach people how to give immediate medical help in an emergency
- flagrante delicto — Law. in the very act of committing the offense.
- flickertail state — North Dakota (used as a nickname).
- floating currency — a currency that is free to fluctuate against other currencies in accordance with market forces
- floating dry dock — a dock that floats and can be lowered in the water for the entrance of a ship, and then raised for use as a dry dock
- flowering currant — an ornamental shrub, Ribes sanguineum, growing to 2 to 3 metres (6 to 9ft) in height, with red, crimson, yellow, or white flowers: family Saxifragaceae
- flowering tobacco — any plant belonging to the genus Nicotiana, of the nightshade family, as N. alata and N. sylvestris, having clusters of fragrant flowers that usually bloom at night, grown as an ornamental.
- fluid lubrication — lubrication in which bearing surfaces are separated by an oil film sustained by the motion of the parts
- 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.
- formative element — a morpheme that serves as an affix, not as a base, or root, in word formation.
- 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].
- fractionalization — Separation into parts by fractionalizing.
- fraternal society — a club or other association, usually of men, having a limited membership and devoted to professional, religious, charitable, or social activities.
- front-line player — a regular player on a sports team or one who plays in the farthest forward position
- frostbite sailing — the sport of sailing in temperate latitudes during the winter despite cold weather.
- 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.
- golf ball printer — IBM 2741
- grapefruit league — a series of training games played by major-league teams before the opening of the season (so named because they take place in the citrus-growing South, as in Florida).