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18-letter words containing c, m, e

  • ecosystem services — the important benefits for human beings that arise from healthily functioning ecosystems, notably production of oxygen, soil genesis, and water detoxification
  • ecumenical council — a solemn assembly in the Roman Catholic Church, convoked and presided over by the pope and composed of cardinals, bishops, and certain other prelates whose decrees, when confirmed by the pope, become binding.
  • eigendecomposition — (linear algebra) The factorization of a matrix into a canonical form, whereby the matrix is represented in terms of its eigenvalues and eigenvectors.
  • eighty-column mind — (abuse)   The sort said to be possessed by persons for whom the transition from punched card to paper tape was traumatic (nobody has dared tell them about disks yet). It is said that these people, including (according to an old joke) the founder of IBM, will be buried "face down, 9-edge first" (the 9-edge being the bottom of the card). This directive is inscribed on IBM's 1402 and 1622 card readers and is referenced in a famous bit of doggerel called "The Last Bug", the climactic lines of which are as follows: He died at the console Of hunger and thirst. Next day he was buried, Face down, 9-edge first. The eighty-column mind is thought by most hackers to dominate IBM's customer base and its thinking. See fear and loathing, card walloper.
  • electrocardiograms — Plural form of electrocardiogram.
  • electrocorticogram — a record of brain waves obtained by placing electrodes directly on the surface of the exposed cerebral cortex
  • electrodynamometer — An instrument that measures electric current by indicating the strength of repulsion or attraction between the magnetic fields of two sets of coils, one fixed and one movable.
  • electroluminescent — Having the quality of electroluminescence.
  • electronic mailbox — a device used to store electronic mail
  • electronic meeting — (messaging)   The use of a network of personal computers to improve communication that takes place in a meeting. Electronic meetings are effective with as few as two participants and with over 100 participants. Participants can be face-to-face in a meeting room or distributed around the world. They may all be participating at the same time or different times.
  • electroretinograms — Plural form of electroretinogram.
  • elementary teacher — a teacher in an elementary school
  • embryonic membrane — any of several living membranes enclosing or closely associated with the developing vertebrate embryo, as the allantois, amnion, yolk sac, etc.
  • emergency services — The emergency services are the public organizations whose job is to take quick action to deal with emergencies when they occur, especially the fire brigade, the police, and the ambulance service.
  • emmenthal (cheese) — a hard, pale-yellow Swiss cheese with a mild flavor and large holes
  • emotional literacy — the ability to deal with one's emotions and recognize their causes
  • employment service — (in the United States) a government department established to collect and supply to the unemployed information about job vacancies and to employers information about availability of prospective workers
  • energy consumption — amount of energy used
  • enforcement action — action by a body or organization, esp a financial one, to make sure that its rules are being followed
  • environment agency — an official agency providing information on environmental issues, esp rivers, flooding and pollution
  • erectile impotence — impotence caused by the inability of the penis to become sufficiently firm to penetrate the vagina
  • ethical investment — an investment in a company whose activities or products are not considered by the investor to be unethical
  • ethnomusicological — Relating to or pertaining to ethnomusicology.
  • euclid's algorithm — (algorithm)   (Or "Euclidean Algorithm") An algorithm for finding the greatest common divisor (GCD) of two numbers. It relies on the identity gcd(a, b) = gcd(a-b, b) To find the GCD of two numbers by this algorithm, repeatedly replace the larger by subtracting the smaller from it until the two numbers are equal. E.g. 132, 168 -> 132, 36 -> 96, 36 -> 60, 36 -> 24, 36 -> 24, 12 -> 12, 12 so the GCD of 132 and 168 is 12. This algorithm requires only subtraction and comparison operations but can take a number of steps proportional to the difference between the initial numbers (e.g. gcd(1, 1001) will take 1000 steps).
  • european community — an economic and political association of European States that came into being in 1967, when the legislative and executive bodies of the European Economic Community merged with those of the European Coal and Steel Community and the European Atomic Energy Community: subsumed into the European Union in 1993
  • examination script — a script with answers written on it by an examination candidate taking a written examination
  • exchange programme — an arrangement in which people from different countries visit each other's country, perhaps to strengthen links between them or to improve foreign language skills
  • executive chairman — the most senior internal position within a company, combining the duties of chairman and chief executive
  • exercise equipment — equipment that can be used for exercising, such as tread mills, rowing machines, etc
  • exercise programme — a programme detailing a range of physical exercises and the amount of time each exercise should be performed, used especially in gymnasiums, where they are typically tailored to individuals' needs
  • extermination camp — a camp where people are imprisoned and killed
  • family-size packet — a packet large enough to be suitable for a family
  • farm the long acre — to graze cows on the verge of a road
  • feeping creaturism — /fee'ping kree"ch*r-izm/ A deliberate spoonerism for creeping featurism, meant to imply that the system or program in question has become a misshapen creature of hacks. This term isn"t really well defined, but it sounds so neat that most hackers have said or heard it. It is probably reinforced by an image of terminals prowling about in the dark making their customary noises.
  • fermat's principle — Optics. the law that the path taken by a ray of light in going from one point to another point will be the path that requires the least time.
  • fifth monarchy men — (during the Commonwealth in the 17th century) a militant sect of Puritans who identified the fifth monarchy with the millennial reign of Christ and who believed they should help to inaugurate that reign by force.
  • first class module — (programming)   A module that is a first class data object of the programming language, e.g. a record containing functions. In a functional language, it is standard to have first class programs, so program building blocks can have the same status.
  • fixed-focus camera — a camera with an unadjustable focal length and with a relatively large depth of field.
  • fixed-term tenancy — a tenancy arrangement for a particular and fixed period
  • forced development — the processing of underexposed photographic film to increase the image density
  • forensic chemistry — the application of facts concerning chemistry to questions of civil and criminal law.
  • formal equivalence — the relation that holds between two open sentences when their universal closures are materially equivalent
  • forward compatible — forward compatibility
  • four-color problem — the problem, solved in 1976, of proving the theorem that any geographic map can be colored using only four colors so that no connected countries with a common boundary are colored the same color.
  • fourth commandment — “Remember the sabbath day, to keep it holy”: fourth of the Ten Commandments.
  • frame of reference — a structure of concepts, values, customs, views, etc., by means of which an individual or group perceives or evaluates data, communicates ideas, and regulates behavior.
  • frequency spectrum — The frequency spectrum of an electrical signal is the distribution of the amplitudes and phases of each frequency component against frequency.
  • fu manchu mustache — a mustache whose ends droop to the chin.
  • gene amplification — an increase in the frequency of replication of a DNA segment.
  • genetic algorithms — genetic algorithm
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