23-letter words containing f, l, e, c
- acceleration of gravity — the gravitational acceleration of a freely falling object, expressed in terms of the rate of increase of velocity per second: on earth 980.665 cm (32.17 ft) per second per second is the standard
- act of parliament clock — a pendulum wall clock of the late 18th century, usually having a black dial with gilt numbers: originally installed in English taverns because a burdensome tax prevented many homes from having private clocks.
- affiliation proceedings — (formerly) legal proceedings, usually initiated by an unmarried mother, claiming legal recognition that a particular man is the father of her child, often associated with a claim for financial support
- allowance for bad debts — Allowance for bad debt is a provision made in a company's accounts which recognizes that some debts will not be able to be collected.
- anomalous zeeman effect — the dividing of a spectral line or lines as a result of placing a radiation source in a magnetic field. The division consists of three equally spaced lines (normal Zeeman effect) in systems for which the spin quantum number is zero, or of three or more unequally spaced lines (anomalous Zeeman effect) in systems for which the spin quantum number is not zero.
- articles of association — the constitution and regulations of a registered company as required by the British Companies Acts
- artificial insemination — Artificial insemination is a medical technique for making a woman pregnant by injecting previously stored sperm into her womb. Female animals can also be made pregnant by artificial insemination. The abbreviation AI is also used.
- artificial intelligence — Artificial intelligence is a type of computer technology which is concerned with making machines work in an intelligent way, similar to the way that the human mind works. The abbreviation AI is also used.
- artificial-intelligence — the capacity of a computer to perform operations analogous to learning and decision making in humans, as by an expert system, a program for CAD or CAM, or a program for the perception and recognition of shapes in computer vision systems. Abbreviation: AI, A.I.
- astronomical refraction — refraction (def 3).
- astronomical-refraction — Physics. the change of direction of a ray of light, sound, heat, or the like, in passing obliquely from one medium into another in which its wave velocity is different.
- at the beck and call of — at the service of; obedient to the wishes of
- bachelor of arts degree — a degree conferred on a person who has successfully completed his or her undergraduate studies, usually in a branch of the liberal arts or humanities
- be (flat) on one's back — to be ill, bedridden, or helpless
- catherine of alexandria — Saint, a.d. c310, Christian martyr.
- cauchy integral formula — a theorem that gives an expression in terms of an integral for the value of an analytic function at any point inside a simple closed curve of finite length in a domain.
- chlorotrifluoroethylene — a colorless, flammable gas, C 2 H 2 ClF, that polymerizes to form oils, greases, and waxes.
- classification schedule — the printed scheme of a system of classification
- columbus air force base — U.S. Air Force installation in NE Mississippi, NW of Columbus.
- come out of one's shell — to become less shy and reserved
- commonwealth of england — commonwealth (def 5).
- commonwealth of nations — a voluntary association of independent nations and dependent territories linked by historical ties (as parts of the former British Empire) and cooperating on matters of mutual concern, especially regarding economics and trade.
- complain about the food — If you complain about the food, you say that you are not satisfied with it.
- confessional television — television programmes, esp talk shows, in which members of the public reveal their private lives, personal problems, etc
- conjunctive normal form — (logic) (CNF) A logical formula consisting of a conjunction of disjunctions of terms where no disjunction contains a conjunction. Such a formula might also be described as a product of sums. E.g. the CNF of (A and B) or C is (A or C) and (B or C). Contrast Disjunctive Normal Form.
- correlation coefficient — a statistic measuring the degree of correlation between two variables as by dividing their covariance by the square root of the product of their variances. The closer the correlation coefficient is to 1 or –1 the greater the correlation; if it is random, the coefficient is zero
- cost-of-living increase — a pay rise that is given because the cost of living has gone up
- cyclohexylsulfamic acid — cyclamic acid.
- dichlorodiethyl sulfide — mustard gas.
- dichlorodifluoromethane — a colourless nonflammable gas easily liquefied by pressure: used as a propellant in aerosols and fire extinguishers and as a refrigerant. Formula: CCl2F2
- differential compaction — differences in the extent to which sediment is compacted owing to topographic irregularities of the surface on which it is deposited.
- differential psychology — the branch of psychology dealing with the study of characteristic differences or variations of groups or individuals, especially through the use of analytic techniques and statistical methods.
- disjunctive normal form — (DNF) A logical formula consisting of a disjunction of conjunctions where no conjunction contains a disjunction. E.g. the DNF of (A or B) and C is (A and C) or (B and C).
- dissociate oneself from — to deny or repudiate any connection with
- duplication of the cube — the insoluble problem of constructing a cube having twice the volume of a given cube, using only a ruler and compass.
- electric field strength — the strength or intensity of an electric field at any point, usually measured in volts per metre
- electronic file cabinet — a device, controlled by software, for the storage and retrieval of information
- entrance qualifications — academic requirements
- equivalent focal length — the ratio of the size of an image of a small distant object near the optical axis to the angular distance of the object in radians
- extremely low frequency — a radio frequency or radio-frequency band below 3 kilohertz
- fall between the cracks — to fail to fit into a given agenda or program
- fall flat on one's face — to fail, esp in a ridiculous or humiliating manner
- fall through the cracks — to break without complete separation of parts; become fissured: The plate cracked when I dropped it, but it was still usable.
- fendalton shopping cart — a four-wheel drive recreational vehicle
- ferric ammonium oxalate — a green, crystalline, water-soluble, synthetically produced powder, (NH 4) 3 Fe(C 2 O 4) 3 ⋅3H 2 O, used chiefly in the manufacture of blueprint paper.
- field effect transistor — a transistor in which the output current is varied by varying the value of an electric field within a region of the device. Abbreviation: FET.
- field-effect transistor — a transistor in which the output current is varied by varying the value of an electric field within a region of the device. Abbreviation: FET.
- firing on all cylinders — working or performing at full capability
- first earl of leicester — Robert, 1st Earl of Leicester, 1532?–88, British statesman and favorite of Queen Elizabeth.
- first strike capability — the ability to use nuclear missiles in an opening attack calculated to destroy the enemy's nuclear weapons
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