20-letter words containing a, i, r, c, u, s
- accounting standards — a set of standard rules that accountancy companies are obliged to follow
- acquis communautaire — European Union laws
- adirondack mountains — a mountain range in NE New York State. Highest peak: Mount Marcy, 1629 m (5344 ft)
- administrative court — a court that specializes in dealing with cases relating to the way in which government bodies exercise their powers
- air-raid precautions — measures taken to protect the public from air-raid attacks
- amana church society — a Christian community in Iowa governed by elders, with no ordained clergy: founded in Germany in 1714, in America since 1843
- amicus usque ad aras — a friend to the last degree.
- angular displacement — the angle through which a point, line, or body is rotated about a specific axis in a given direction
- anticrepuscular arch — antitwilight arch.
- aortic insufficiency — abnormal closure of the aortic valve resulting in regurgitation of blood to the left ventricle.
- aristarchus of samos — 3rd century bc, Greek astronomer who anticipated Copernicus in advancing the theory that the earth revolves around the sun
- asexual reproduction — reproduction, as budding, fission, or spore formation, not involving the union of gametes.
- at two hours' notice — with notification only two hours in advance
- atmospheric pressure — Atmospheric pressure is the pressure of the atmosphere on the Earth's surface.
- automobile insurance — Automobile insurance is insurance coverage for cars.
- basic encoding rules — (protocol, standard) (BER) ASN.1 encoding rules for producing self-identifying and self-delimiting transfer syntax for data structures described in ASN.1 notations. BER is an self-identifying and self-delimiting encoding scheme, which means that each data value can be identified, extracted and decoded individually. Huw Rogers once described BER as "a triumph of bloated theory over clean implementation". He also criticises it as designed around bitstreams with arbitrary boundaries between data which can only be determined at a high level. Documents: ITU-T X.690, ISO 8825-1. See also CER, DER, PER.
- broadcast journalism — journalism as practiced in radio and television.
- buck's horn plantain — a Eurasian plant, Plantago coronopus, having leaves resembling a buck's horn: family Plantaginaceae
- cantabrian mountains — a mountain chain along the N coast of Spain, consisting of a series of high ridges that rise over 2400 m (8000 ft): rich in minerals (esp coal and iron)
- carbon sequestration — the prevention of greenhouse gas build-up in the earth's atmosphere by methods such as planting trees to absorb carbon dioxide or pumping carbon dioxide into underground reservoirs
- carl friedrich gauss — (person) A German mathematician (1777 - 1855), one of all time greatest. Gauss discovered the method of least squares and Gaussian elimination. Gauss was something of a child prodigy; the most commonly told story relates that when he was 10 his teacher, wanting a rest, told his class to add up all the numbers from 1 to 100. Gauss did it in seconds, having noticed that 1+...+100 = 100+...+1 = (101+...+101)/2. He did important work in almost every area of mathematics. Such eclecticism is probably impossible today, since further progress in most areas of mathematics requires much hard background study. Some idea of the range of his work can be obtained by noting the many mathematical terms with "Gauss" in their names. E.g. Gaussian elimination (linear algebra); Gaussian primes (number theory); Gaussian distribution (statistics); Gauss [unit] (electromagnetism); Gaussian curvature (differential geometry); Gaussian quadrature (numerical analysis); Gauss-Bonnet formula (differential geometry); Gauss's identity (hypergeometric functions); Gauss sums (number theory). His favourite area of mathematics was number theory. He conjectured the Prime Number Theorem, pioneered the theory of quadratic forms, proved the quadratic reciprocity theorem, and much more. He was "the first mathematician to use complex numbers in a really confident and scientific way" (Hardy & Wright, chapter 12). He nearly went into architecture rather than mathematics; what decided him on mathematics was his proof, at age 18, of the startling theorem that a regular N-sided polygon can be constructed with ruler and compasses if and only if N is a power of 2 times a product of distinct Fermat primes.
- carpathian mountains — a mountain system of central and E Europe, extending from Slovakia to central Romania: mainly forested, with rich iron ore resources. Highest peak: Gerlachovka, 2663 m (8788 ft)
- casing head pressure — The casing head pressure is the pressure on the casing, which is measured at the wellhead.
- catastrophic failure — Catastrophic failure is sudden and complete failure which cannot be put right.
- cavalleria rusticana — an opera (1890) by Pietro Mascagni.
- cellular respiration — the oxidation of organic compounds that occurs within cells, producing energy for cellular processes.
- cellulose triacetate — a triacetic ester of cellulose characterized by its resistance to most solvents, used chiefly in the manufacture of textile fibers.
- centrifugal spinning — the spinning of rayon filaments in a centrifugal box.
- channel service unit — (communications) (CSU) A type of interface used to connect a terminal or computer to a digital medium in the same way that a modem is used for connection to an analogue medium. A CSU is provided by the communication carrier to customers who wish to use their own equipment to retime and regenerate the incoming signals. The customer must supply all of the transmit logic, receive logic and timing recovery in order to use the CSU, whereas a digital service unit DSU performs these functions.
- characteristic curve — a graph of the density of a particular photographic material plotted against the logarithm of the exposure producing this density
- checkbook journalism — the practice of paying for a news story or an interview, or for exclusive broadcasting or publishing rights.
- chemolithoautotrophs — Plural form of chemolithoautotroph.
- child support agency — the British government agency concerned with the welfare of children
- child-abuse register — (in Britain) a list of children deemed to be at risk of abuse or injury from their parents or guardians, compiled and held by a local authority, area health authority, or NSPCC Special Unit
- codex juris canonici — the official code of canon law in force in the Roman Catholic Church; introduced in 1918 and revised in 1983
- compensation culture — a culture in which people are very ready to go to law over even relatively minor incidents in the hope of gaining compensation
- complaints procedure — a prescribed method of lodging a complaint to an institution
- confectioners' sugar — Confectioners' sugar is very fine white sugar that is used for making icing and candy.
- conservative judaism — a movement reacting against the radicalism of Reform Judaism, rejecting extreme change and advocating moderate relaxations of traditional Jewish law, by an extension of the process by which its adherents claim traditional Orthodox Judaism evolved
- construction company — a business enterprise concerned with the construction of buildings, bridges, etc
- continuous variation — variation in phenotypic traits such as body weight or height in which a series of types are distributed on a continuum rather than grouped into discrete categories. Compare discontinuous variation.
- contradistinguishing — Present participle of contradistinguish.
- counterdemonstration — a demonstration that is held in reaction to another demonstration
- crime against nature — Law. sodomy.
- crime and punishment — a novel (1866) by Feodor Dostoevsky.
- curry favour with sb — If one person tries to curry favour with another, they do things in order to try to gain their support or co-operation.
- cycloidal propulsion — propulsion of a vessel by propellers of controllable pitch that steer as well as propel.
- digital service unit — data service unit
- directory user agent — (DUA) The software that accesses the X.500 Directory Service on behalf of the directory user. The directory user may be a person or another software element.
- disability insurance — insurance providing income to a policyholder who is disabled and cannot work.
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