16-letter words containing r, e, o, i
- ferdinand marcos — Ferdinand E(dralin) [ed-ruh-lin] /ˈɛd rə lɪn/ (Show IPA), 1917–1989, Philippine political leader: president 1965–86.
- ferrocyanic acid — a white, crystalline, unstable, water-soluble solid, H 4 Fe(CN) 6 , obtained by the interaction of a ferrocyanide and an acid.
- ferroelectricity — (physics) The electric polarization of a substance (spontaneous presence of a dipole moment) that is analagous to ferromagnetism.
- ferruginous duck — a common European duck, Aythyra nyroca, having reddish-brown plumage with white wing bars
- fertility factor — a sex-determining chromosome or gene.
- fertility symbol — an object, esp a phallic symbol, used in fertility-cult ceremonies to symbolize regeneration
- feulgen reaction — a reaction in which an aldehyde combines with a modified Schiff's reagent to produce a purplish compound: used especially to test for the presence of DNA
- fibonacci number — a number in the Fibonacci sequence, each of which is the sum of the previous two
- fibonacci series — a sequence of integers in which each integer (Fibonacci number) after the second is the sum of the two preceding integers; specif., the series 1, 1, 2, 3, 5, 8, 13, . . .
- fictitious force — any force that is postulated to account for apparent deviations from Newton's laws of motion appearing in an accelerated reference system.
- fielder's choice — a fielder's attempt to put out a base runner rather than the batter when a play at first base would put out the batter.
- fifth-generation — denoting developments in computer design to produce machines with artificial intelligence
- figure of speech — any expressive use of language, as a metaphor, simile, personification, or antithesis, in which words are used in other than their literal sense, or in other than their ordinary locutions, in order to suggest a picture or image or for other special effect. Compare trope (def 1).
- figure-conscious — concerned to keep an attractively slim body shape
- file compression — (algorithm) The compression of data in a file, usually to reduce storage requirements.
- filter promotion — (algorithm) In a generate and test algorithm, combining part of the filter with the generator in order to reduce the number of potential solutions generated. A trivial example: filter (< 100) [1..1000] ==> [1..99] where [1..n] generates the list of integers from 1 to n. Here the filter has been combined completely with the generator. This is an example of fusion.
- finance director — financial manager
- finished product — the product that emerges at the end of a manufacturing process
- finless porpoise — a porpoise Neophocaena phocaenoides of the Indian and pacific Oceans that completely lacks a dorsal fin
- fire regulations — rules intended to make sure that people and property stay safe in the event of a fire
- fire-tube boiler — any boiler for generating steam by passing hot gases and other combustible products through tubes (fire tubes) immersed in water to a chimney or uptake.
- firework display — a public event at which fireworks are set alight
- first generation — 1. (architecture) first generation computer. 2. (language) first generation language.
- first-aid worker — someone who is trained to give immediate medical help in an emergency
- first-generation — being the first generation of a family to be born in a particular country.
- fisherman's knot — a knot for joining two ropes of equal thickness consisting of an overhand knot or double overhand knot by each rope round the other, so that the two knots jam when pulled tight
- fissure eruption — the emergence of lava from a fissure in the ground rather than from a volcanic cone or vent
- flabbergastation — (colloquial) Bewildered shock or surprise; the state or condition of being flabbergasted.
- flame cultivator — an implement that kills weeds by scorching them with a directed flow of flaming gas.
- flash eliminator — a device fitted to the muzzle of a firearm to reduce the flash made by the ignited propellant gases
- florencio varela — a city in E Argentina, near Buenos Aires.
- floridean starch — the storage polysaccharide of red algae.
- flower arranging — Flower arranging is the art or hobby of arranging cut flowers in a way which makes them look attractive.
- flowering quince — any shrub belonging to the genus Chaenomeles, of the rose family, native to eastern Asia, having showy, waxy flowers and a quincelike fruit, grown widely as an ornamental.
- flutter tonguing — a method of sounding a wind instrument, esp the flute, with a rolling movement of the tongue
- follicular phase — a stage of the menstrual cycle, from onset of menstruation to ovulation.
- food intolerance — an intolerance of a specific type of food, causing an adverse reaction
- foot in the door — If you say that something helps someone to get their foot in the door or their toe in the door, you mean that it gives them an opportunity to start doing something new, usually in an area that is difficult to succeed in.
- footsteps editor — the technician who adds sound effects, such as doors closing, rain falling, etc, during the postproduction sound-dubbing process
- for a/one minute — If you say that you do not believe for a minute or for one minute that something is true, you are emphasizing that you do not believe that it is true.
- for the duration — If you say that something will happen for the duration, you mean that it will happen for as long as a particular situation continues.
- for the meantime — For the meantime means for a period of time from now until something else happens.
- forbid the banns — to raise an objection to a marriage announced in this way
- forced vibration — Forced vibration is a type of vibration in which a force is repeatedly applied to a mechanical system.
- fore and aft rig — a sail set in a line from one end the other of a vessel rather than in a square
- fore-and-aft rig — a rig in which the principal sails are fore-and-aft.
- foreign commerce — an interchange of goods or commodities, especially on a large scale between different countries (foreign commerce) or between different parts of the same country (domestic commerce) trade; business.
- foreign currency — money used in another country
- foreign exchange — commercial paper drawn on a person or corporation in a foreign nation.
- foreign language — language not one's mother tongue