19-letter words containing a, b, c, t, e, r
- a creature of habit — If you say that someone is a creature of habit, you mean that they usually do the same thing at the same time each day, rather than doing new and different things.
- absolutory sentence — a sentence that acquits the accused
- absorption spectrum — the characteristic pattern of dark lines or bands that occurs when electromagnetic radiation is passed through an absorbing medium into a spectroscope. An equivalent pattern occurs as coloured lines or bands in the emission spectrum of that medium
- abstinence syndrome — the withdrawal symptoms that occur after abstinence from a drug, especially a narcotic, to which one is addicted.
- abstracting service — a service that provides abstracts of publications on a subject or group of related subjects, usually on a subscription basis.
- accounts receivable — A company's accounts receivable are all the money that it is owed by other companies for goods or services that it has supplied, or a list of these companies and the amounts that they owe.
- affordable care act — a federal law providing for a fundamental reform of the U.S. healthcare and health insurance system, signed by President Barack Obama in 2010: formally called Affordable Care Act or Patient Protection and Affordable Care Act.
- algebraic data type — (programming) (Or "sum of products type") In functional programming, new types can be defined, each of which has one or more constructors. Such a type is known as an algebraic data type. E.g. in Haskell we can define a new type, "Tree": data Tree = Empty | Leaf Int | Node Tree Tree with constructors "Empty", "Leaf" and "Node". The constructors can be used much like functions in that they can be (partially) applied to arguments of the appropriate type. For example, the Leaf constructor has the functional type Int -> Tree. A constructor application cannot be reduced (evaluated) like a function application though since it is already in normal form. Functions which operate on algebraic data types can be defined using pattern matching: depth :: Tree -> Int depth Empty = 0 depth (Leaf n) = 1 depth (Node l r) = 1 + max (depth l) (depth r) The most common algebraic data type is the list which has constructors Nil and Cons, written in Haskell using the special syntax "[]" for Nil and infix ":" for Cons. Special cases of algebraic types are product types (only one constructor) and enumeration types (many constructors with no arguments). Algebraic types are one kind of constructed type (i.e. a type formed by combining other types). An algebraic data type may also be an abstract data type (ADT) if it is exported from a module without its constructors. Objects of such a type can only be manipulated using functions defined in the same module as the type itself. In set theory the equivalent of an algebraic data type is a discriminated union - a set whose elements consist of a tag (equivalent to a constructor) and an object of a type corresponding to the tag (equivalent to the constructor arguments).
- algebraic extension — a field containing a given field such that every element in the first field is algebraic over the given field.
- algebraic operation — any of the mathematical operations of addition, subtraction, multiplication, division, raising to a power, or extraction of a root.
- algebraic structure — (mathematics) Any formal mathematical system consisting of a set of objects and operations on those objects. Examples are Boolean algebra, numerical algebra, set algebra and matrix algebra.
- anaerobic digestion — the conversion of biodegradable waste matter into compost in the absence of oxygen
- anno urbis conditae — in a (specified) year from the founding of the city: the ancient Romans reckoned dates from Rome's founding, c. 753 b.c.
- anticipatory breach — a declaration by one party to a contract that it does not intend to fulfil its obligations to the second party, who can then accept this declaration and choose not to be bound by the contract
- arbitration service — a service which provides an impartial referee to settle disputes
- arecibo observatory — an observatory in Puerto Rico at which the world's largest dish radio telescope (diameter 305 m) is situated. It is operated by the National Astronomy and Ionosphere Center
- asbestos cork award — (humour) Once, long ago at MIT, there was a flamer so consistently obnoxious that another hacker designed, had made, and distributed posters announcing that said flamer had been nominated for the "asbestos cork award". (Any reader in doubt as to the intended application of the cork should consult the etymology under flame.) Since then, it is agreed that only a select few have risen to the heights of bombast required to earn this dubious dignity - but there is no agreement on *which* few.
- at bus architecture — Industry Standard Architecture
- atmospheric braking — a technique of reentry in which the vehicle is maneuvered in the upper atmosphere so as to lose velocity by utilizing drag without overheating.
- bacillary dysentery — shigellosis.
- backward compatible — backward compatibility
- backward somersault — a somersault performed in a backward direction with the legs leading the rest of the body
- bacteriochlorophyll — a pale blue-gray form of chlorophyll that is unique to the photosynthetic but anaerobic purple bacteria.
- balfour declaration — the statement made by Arthur Balfour in 1917 of British support for the setting up of a national home for the Jews in Palestine, provided that the rights of "existing non-Jewish communities" in Palestine could be safeguarded
- bank reconciliation — A bank reconciliation is the process of adjusting a bank statement to show transactions that have occurred since the date of issue, or a document showing this.
- banker's acceptance — a draft or bill of exchange drawn on a bank and accepted by it
- bankruptcy petition — an official request for protection under bankruptcy laws, which initiates bankruptcy proceedings
- barometric gradient — pressure gradient
- barometric pressure — atmospheric pressure as indicated by a barometer
- batterie de cuisine — cooking utensils collectively; pots and pans, etc
- baudotbetical order — (algorithm) /baw do bet' i k*l/ Sorted into an order where numerics and special characters are intermixed by sorting a 5-bit Baudot code file ignoring the numeric shift and unshift codes.
- be burnt to a crisp — If something is burnt to a crisp, it is completely burnt.
- behavioral genetics — an interdisciplinary field studying the effects of genetics and hereditary factors on animal and human behavior.
- belgian east africa — a former Belgian trust territory in Africa, also (1924–62) Ruanda-Urundi, now the independent countries of Rwanda and Burundi.
- benefit performance — a theatrical or musical performance in aid of charity
- betamethyl acrolein — crotonaldehyde.
- bicarbonate of soda — Bicarbonate of soda is a white powder which is used in baking to make cakes rise, and also as a medicine for your stomach.
- binary large object — (database) (BLOB) A large block of data stored in a database, such as an image or sound file. A BLOB has no structure which can be interpreted by the database management system but is known only by its size and location.
- black carpenter ant — a large, black ant, Camponotus pennsylvanicus, that lives in damp wood in nature or in houses, where it can cause considerable damage by boring or tunneling.
- black carpet beetle — any of several small beetles of the family Dermestidae, the larvae of which are household pests, feeding on rugs and other woolen fabrics, especially Anthrenus scrophulariae (buffalo carpet beetle) and Attagenus piceus (black carpet beetle)
- black forest gateau — a chocolate sponge cake containing morello cherries and whipped cream, with a topping of chocolate icing
- black-footed ferret — a musteline mammal, Mustela nigripes, of W North America, closely related to the weasels
- blackstrap molasses — the molasses remaining after the maximum quantity of sugar has been extracted from the raw material
- blue stellar object — any of a class of blue celestial objects, at one time thought to be stars, that do not emit appreciable radio waves. Abbreviation: BSO.
- board certification — the process of certifying that a physician has passed an examination and met the standards of a professional organization representing a particular medical specialty.
- boat-tailed grackle — a large grackle, Quiscalus major, of the southeastern U.S., that folds its tail into a shape resembling the keel of a boat.
- bracket abstraction — (compiler) An algorithm which turns a term into a function of some variable. The result of using bracket abstraction on T with respect to variable v, written as [v]T, is a term containing no occurrences of v and denoting a function f such that f v = T. This defines the function f = (\ v . T). Using bracket abstraction and currying we can define a language without bound variables in which the only operation is monadic function application. See combinator.
- breach of the peace — A breach of the peace is noisy or violent behaviour in a public place which is illegal because it disturbs other people.
- british east africa — the former British possessions of Uganda, Kenya, Tanganyika, and Zanzibar, before their independence in the 1960s
- british west africa — the former British possessions of Nigeria, The Gambia, Sierra Leone, and the Gold Coast, and the former trust territories of Togoland and Cameroons
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