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16-letter words containing c, r, e, f

  • federated church — a church whose membership includes two or more congregations of different denominational affiliation.
  • feedback control — (electronics)   A control system which monitors its effect on the system it is controlling and modifies its output accordingly. For example, a thermostat has two inputs: the desired temperature and the current temperature (the latter is the feedback). The output of the thermostat changes so as to try to equalise the two inputs. Computer disk drives use feedback control to position the read/write heads accurately on a recording track. Complex systems such as the human body contain many feedback systems that interact with each other; the homeostasis mechanisms that control body temperature and acidity are good examples.
  • feel constrained — If you feel constrained to do something, you feel that you must do it, even though you would prefer not to.
  • feel-good factor — When journalists refer to the feel-good factor, they mean that people are feeling hopeful and optimistic about the future.
  • feeping creature — [feeping creaturism] An unnecessary feature; a bit of chrome that, in the speaker's judgment, is the camel's nose for a whole horde of new features.
  • feminine caesura — a caesura occurring immediately after an unstressed or short syllable.
  • femme de chambre — a chambermaid
  • ferdinand marcos — Ferdinand E(dralin) [ed-ruh-lin] /ˈɛd rə lɪn/ (Show IPA), 1917–1989, Philippine political leader: president 1965–86.
  • ferricyanic acid — a brown, crystalline, unstable, water-soluble solid, H 3 Fe(CN) 6 , obtained by the interaction of a ferricyanide and an acid.
  • 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
  • fertile crescent — an agricultural region extending from the Levant to Iraq.
  • fertility clinic — a place at which a couple who are unable to conceive may receive medical advice and treatments to help them to have a child
  • fertility factor — a sex-determining chromosome or gene.
  • 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.
  • 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 cigarette — a cigarette with a filter tip
  • finance director — financial manager
  • finance minister — a member of a government in charge of the financial affairs of a state etc
  • finger exercises — exercises that are intended to increase the flexibility and dexterity of a player's fingers
  • fingertip search — When the police carry out a fingertip search of a place, they examine it for evidence in a very detailed way.
  • finished product — the product that emerges at the end of a manufacturing process
  • firewall machine — (networking, security)   A dedicated gateway server with special security precautions on it, used to service external connections (typically from the public Internet). The firewall machine protects servers and networks hidden behind it from crackers. The typical firewall is an inexpensive microprocessor-based Unix machine with no critical data, with public network ports on it, but just one carefully watched connection back to the rest of the cluster. The special precautions may include threat monitoring, call-back, and even a complete iron box keyable to particular incoming IDs or activity patterns. The type of network and security environment of a firewall machine is often called a De-Militarised Zone (DMZ). It may contain other servers such as e-mail servers or proxy gateways - machines that need to be publicly accessible but also need some access to internal systems. Also known as a (Venus) flytrap after the insect-eating plant.
  • fixed-price menu — In a restaurant, the cost of a meal on a fixed-price menu stays the same and does not vary.
  • flame cultivator — an implement that kills weeds by scorching them with a directed flow of flaming gas.
  • flat-bed scanner — a type of optical scanner having a flat, stationary surface on which a page is scanned by a moving head.
  • flettner control — servocontrol (def 3).
  • florencio varela — a city in E Argentina, near Buenos Aires.
  • floridean starch — the storage polysaccharide of red algae.
  • 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.
  • fluorescent lamp — a tubular electric discharge lamp in which light is produced by the fluorescence of phosphors coating the inside of the tube.
  • focused strategy — a business strategy in which an organization divests itself of all but its core activities, using the funds raised to enhance the distinctive abilities that give it an advantage over its rivals
  • follicular phase — a stage of the menstrual cycle, from onset of menstruation to ovulation.
  • follow the crowd — copy what others are doing
  • food intolerance — an intolerance of a specific type of food, causing an adverse reaction
  • for a good cause — If you say that something is for a good cause, you mean that it is worth doing or giving to because it will help other people, for example by raising money for charity.
  • for all sb cares — You can use for all I care to emphasize that it does not matter at all to you what someone does.
  • forbush decrease — the sudden decrease in the intensity of cosmic rays after an increase in solar activity.
  • force one's hand — the terminal, prehensile part of the upper limb in humans and other primates, consisting of the wrist, metacarpal area, fingers, and thumb.
  • forced vibration — Forced vibration is a type of vibration in which a force is repeatedly applied to a mechanical system.
  • 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.
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