20-letter words containing a, r, i, o, u, s
- absolute undertaking — a legally binding promise to do something that is not restricted or qualified in any way
- accounting standards — a set of standard rules that accountancy companies are obliged to follow
- acquis communautaire — European Union laws
- add insult to injury — to make an unfair or unacceptable situation even worse
- 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
- after-hours drinking — drinking in a pub after its legal closing time
- air-raid precautions — measures taken to protect the public from air-raid attacks
- alternative question — a question that offers the listener a choice of two or more alternatives and is characterized by rising intonation on each alternative except for the final one, which has falling intonation, as Would you like coffee, tea, or soda?
- amana church society — a Christian community in Iowa governed by elders, with no ordained clergy: founded in Germany in 1714, in America since 1843
- angoumois grain moth — a gelechiid moth, Sitotroga cerealella, the larvae of which feed on stored corn and other grains.
- anomalous dispersion — a sudden change in the refractive index of a material for wavelengths in the vicinity of absorption bands in the spectrum of the material.
- anthemius of tralles — c474–c534, Greek mathematician and architect, active in Lydia.
- antiauthoritarianism — Opposition to authority; the quality of being antiauthoritarian.
- antidandruff shampoo — a shampoo that prevents or treats dandruff
- antigestational drug — a drug that averts a pregnancy by preventing the fertilized egg from becoming implanted in the uterine wall.
- aortic insufficiency — abnormal closure of the aortic valve resulting in regurgitation of blood to the left ventricle.
- apollonius of rhodes — 3rd century bc, Greek epic poet and head of the Library of Alexandria. His principal work is the four-volume Argonautica
- argument from design — the argument for the existence of God based on the assumption that order in the universe implies an orderer and cannot be a natural feature of the universe.
- 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.
- asian tiger mosquito — a mosquito, Aedes albopictus, native to Asia, that transmits yellow fever and dengue and possibly West Nile virus. Compare yellow-fever mosquito.
- asset turnover ratio — An asset turnover ratio is a measure of the efficiency of a company, that is calculated by dividing sales for a period by average total assets.
- 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.
- beaverhead mountains — a mountain range on the border of E Idaho and SW Montana, in the Bitterroot Range. 10,961 feet (3343 meters).
- bernese mountain dog — a strong sturdy dog of a breed with a bushy tail and a long silky black coat with reddish-brown and white markings, often used as a working farm dog
- bimodal distribution — a frequency distribution with two modes
- bird-footed dinosaur — theropod.
- blue ridge mountains — a mountain range in the eastern US, extending from West Virginia into Georgia: part of the Appalachian mountains. Highest peak: Mount Mitchell, 2038 m (6684 ft)
- board of supervisors — the governing body of a county in many U.S. states, especially in the Midwest and the East, consisting of from 15 to 100 members elected from towns, townships, cities, or wards.
- bouvier des flandres — any of a breed of large, strong dog with a rough, wiry coat and pointed, erect ears
- broadcast journalism — journalism as practiced in radio and television.
- brown lung (disease) — a chronic disease of the lungs caused by inhalation of fine textile fibers, esp. cotton; byssinosis
- 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
- 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)
- catastrophic failure — Catastrophic failure is sudden and complete failure which cannot be put right.
- 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.
- 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
- 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.
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