20-letter words containing r, o, a, s, t, i
- (staring) into space — If you are staring into space, you are looking straight in front of you, without actually looking at anything in particular, for example because you are thinking or because you are feeling shocked.
- abreast of the times — up-to-date, as in ideas, fashions, etc.; modern
- 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
- acetylcholinesterase — an enzyme in nerve cells that is responsible for the destruction of acetylcholine and thus for switching off excitation of the nerve
- 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)
- administration order — an order by a court appointing a person to manage a company that is in financial difficulty, in an attempt to ensure the survival of the company or achieve the best realization of its assets
- administrative court — a court that specializes in dealing with cases relating to the way in which government bodies exercise their powers
- adrenocorticosteroid — corticosteroid
- after the fashion of — like; similar to
- after-hours drinking — drinking in a pub after its legal closing time
- aids-related complex — a condition that may develop into AIDS, characterized by the enlargement of the lymph nodes
- air consignment note — a nonnegotiable shipping document evidencing the contract between shipper and air carrier for transportation and delivery of cargo. Abbreviation: AWB.
- 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.
- animal liberationist — a person who campaigns for animal rights, often by using direct action
- anniversary reaction — a psychological reaction, as depression, occurring at a regularly fixed time and associated with the recollection of an emotionally upsetting past experience, as loss of a loved one.
- 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.
- apothecaries' weight — a system of weights, formerly used in pharmacy, based on the Troy ounce, which contains 480 grains. 1 grain is equal to 0.065 gram
- application software — software designed for a specific need or purpose
- applications program — a program that is written and designed for specific needs or purposes
- arches national park — a national park in E Utah: natural arch formations. 114 sq. mi. (295 sq. km).
- 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
- artificial harmonics — harmonics of a note produced on a stringed instrument by lightly touching a stopped sounded string.
- artificial selection — a process in the breeding of animals and in the cultivation of plants by which the breeder chooses to perpetuate only those forms having certain desirable inheritable characteristics.
- 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.
- association of stars — a sparsely populated group of between 10 and 1000 young stars of similar spectral type and common origin that are moving too fast to form a permanent, gravitationally bound system.
- astatic galvanometer — a galvanometer that is unaffected by the earth's magnetic field and is used for measuring small currents.
- at one's finger tips — the tip or end of a finger.
- at someone's service — ready to serve or cooperate with someone
- 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.
- attic salt (or wit) — graceful, piercing wit
- automobile insurance — Automobile insurance is insurance coverage for cars.
- axiomatic set theory — (theory) One of several approaches to set theory, consisting of a formal language for talking about sets and a collection of axioms describing how they behave. There are many different axiomatisations for set theory. Each takes a slightly different approach to the problem of finding a theory that captures as much as possible of the intuitive idea of what a set is, while avoiding the paradoxes that result from accepting all of it, the most famous being Russell's paradox. The main source of trouble in naive set theory is the idea that you can specify a set by saying whether each object in the universe is in the "set" or not. Accordingly, the most important differences between different axiomatisations of set theory concern the restrictions they place on this idea (known as "comprehension"). NBG (von Neumann-Bernays-Goedel) set theory sort of allows comprehension for all formulae without restriction, but distinguishes between two kinds of set, so that the sets produced by applying comprehension are only second-class sets. NBG is exactly as powerful as ZF, in the sense that any statement that can be formalised in both theories is a theorem of ZF if and only if it is a theorem of ZFC. MK (Morse-Kelley) set theory is a strengthened version of NBG, with a simpler axiom system. It is strictly stronger than NBG, and it is possible that NBG might be consistent but MK inconsistent. ML ("Modern Logic") is to NF as NBG is to ZF. (Its name derives from the title of the book in which Quine introduced an early, defective, form of it). It is stronger than ZF (it can prove things that ZF can't), but if NF is consistent then ML is too.
- backwards compatible — backward compatibility
- bacteriochlorophylls — Plural form of bacteriochlorophyll.
- ballistic trajectory — the path of an unpowered object, as a missile, moving only under the influence of gravity and possibly atmospheric friction and with its surface providing no significant lift to alter the course of flight.
- baptism for the dead — the baptism of a living person in the place of and for the sake of one who has died unbaptized: now practiced chiefly by Mormons.
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