20-letter words containing a, b, r, d, i

case based reasoning — (artificial intelligence) (CBR) A technique for problem solving which looks for previous examples which are similar to the current problem. This is useful where heuristic knowledge is not available. There are many situations where experts are not happy to be questioned about their knowledge by people who want to write the knowledge in rules, for use in expert systems. In most of these situations, the natural way for an expert to describe his or her knowledge is through examples, stories or cases (which are all basically the same thing). Such an expert will teach trainees about the expertise by apprenticeship, i.e. by giving examples and by asking the trainees to remember them, copy them and adapt them in solving new problems if they describe situations that are similar to the new problems. CBR aims to exploit such knowledge. Some key research areas are efficient indexing, how to define "similarity" between cases and how to use temporal information.
central bedfordshire — a unitary authority of S central England. Pop: 252 100 (2007 est). Area: 712 sq km (275 sq miles)
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
cytosine arabinoside — cytarabine.
database transaction — (database) A set of related changes applied to a database. The term typically implies that either all of the changes should be applied or, in the event of an error, none of them, i.e. the transaction should be atomic. Atomicity is one of the ACID properties a transaction can have, another is isolation - preventing interference between processes trying to access the database cocurrently. This is usually achieved by some form of locking - where one process takes exclusive control of a database table or row for the duration of the transaction, preventing other processes from accessing the locked data. The canonical example of a transaction is transferring money between two bank accounts by subtracting it from one and adding it to the other. Some relational database management systems require the user to explicitly start a transaction and then either commit it (if all the individual steps are successful) or roll it back (if there are any errors).
debt-to-equity ratio — A company's debt-to-equity ratio is a measure of leverage that is calculated by dividing total liabilities by shareholders' equity.
demographic timebomb — a predicted shortage of school-leavers and consequently of available workers, caused by an earlier drop in the birth rate, resulting in an older workforce
diabetic retinopathy — a disorder of the blood vessels of the retina occurring as a complication of poorly controlled diabetes mellitus and often leading to blindness.
diamondback terrapin — any edible North American terrapin of the genus Malaclemys, esp M. terrapin, occurring in brackish and tidal waters and having diamond-shaped markings on the shell: family Emydidae
disability insurance — insurance providing income to a policyholder who is disabled and cannot work.
distributed database — A collection of several different databases that looks like a single database to the user. An example is the Internet Domain Name System (DNS).
distributed practice — learning with reasonably long intervals between separate occasions of learning
distribution channel — trade: retailer
distributive lattice — (theory) A lattice for which the least upper bound (lub) and greatest lower bound (glb) operators distribute over one another so that a lub (b glb c) == (a lub c) glb (a lub b) and vice versa. ("lub" and "glb" are written in LateX as \sqcup and \sqcap).
district of columbia — a federal area in the E United States, on the Potomac, coextensive with the federal capital, Washington. 69 sq. mi. (179 sq. km). Abbreviation: DC (for use with zip code), D.C.
double fertilization — the fertilization process characteristic of flowering plants, in which one sperm cell of a pollen grain fertilizes an egg cell while a second fuses with two polar nuclei to produce a triploid body that gives rise to the endosperm.
double-trailer truck — tandem trailer (def 1).
drive a hard bargain — be tough negotiator
duck-billed dinosaur — hadrosaur.
dynamic link library — Dynamically Linked Library
electoral boundaries — the way that a country or area is divided for the purposes of voting in an election
endorsement in blank — an endorsement on a bill of exchange, cheque, etc, naming no payee and thus making the endorsed sum payable to the bearer
every bit as good as — You say that one thing is every bit as good, interesting, or important as another to emphasize that the first thing is just as good, interesting, or important as the second.
for sb's delectation — If you do something for someone's delectation, you do it to give them enjoyment or pleasure.
forbidden transition — an electronic transition in an atom, molecule, etc, that is not permitted by electric dipole selection rules
frederick barbarossa — ("Frederick Barbarossa") 1123?–90, king of Germany 1152–90; king of Italy 1152–90: emperor of the Holy Roman Empire 1152–90.
give a wide berth to — to keep clear of; avoid
grievous bodily harm — law: serious injury
hildegard von bingen — Hildegard von (Hildegard of Bingen"Sibyl of the Rhine") 1098–1178, German nun, healer, writer, and composer.
hindu-arabic numeral — Arabic numeral.
in bad circumstances — (of a person) in a bad financial situation
independent variable — Mathematics. a variable in a functional relation whose value determines the value or values of other variables, as x in the relation y = 3 x 2 . Compare dependent variable (def 1).
indian cucumber root — a North American plant, Medeola virginiana, of the lily family, having whorled leaves, nodding, greenish-yellow flowers, and an edible root.
information builders — Distributors of LEVEL5 OBJECT. Telephone +1 800 969 INFO.
isosorbide dinitrate — a coronary vasodilator, C 6 H 8 N 2 O 8 , used in the prophylaxis and treatment of angina.
keyboard video mouse — (hardware) (KVM) Used to describe a "KVM switch" that allows one keyboard, one video display and one mouse to be switched between two or more computers.
laboratory diagnosis — scientific analysis of a disease
labour-saving device — a machine, gadget, etc, that reduces (human) effort, hard work or labour
live and breathe sth — be passionately interested in sth
magdeburg hemisphere — one of a pair of hemispherical cups from which air can be evacuated when they are placed together: used to demonstrate the force of air pressure.
meta-dichlorobenzene — a colorless liquid, C 6 H 4 Cl 2 , soluble in alcohol and ether: used as a fumigant and insecticide.
microwave background — a background of microwave electromagnetic radiation with a black-body spectrum discovered in 1965, understood to be the thermal remnant of the big bang with which the universe began
neighbourhood warden — a person employed by a local authority to patrol residential areas and deal with antisocial behaviour
new siberian islands — an archipelago in the Arctic Ocean, off the N mainland of Russia, in the Sakha Republic. Area: about 37 555 sq km (14 500 sq miles)
on the drawing board — in the planning stage
operational database — (database) A database containing up-to-date, modifiable data, in contrast to a decision support database.
order bill of lading — a bill of lading that is issued to the order of a shipper or consignee for delivery of the goods and that can be transferred by endorsement to third parties.
para-dichlorobenzene — a white, crystalline, volatile, water-insoluble solid, C 6 H 4 Cl 2 , of the benzene series, having a penetrating odor: used chiefly as a moth repellent.
pentobarbital sodium — a barbiturate drug used in medicine as a sedative and hypnotic. Formula: C11H17N2O3Na
periodontal membrane — the collagenous, fibrous connective tissue between the cementum of the tooth and the alveolus.

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