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22-letter words containing b, t

  • bharatiya janata party — an Indian political party that promotes Hindu nationalism
  • bidirectional printing — (hardware)   A feature of a printer whose printer head can print both when moving left to right and when moving right to left. Also known as "boustrophedonic".
  • big bend national park — a national park in W Texas, on the Rio Grande. 1080 sq. mi. (2800 sq. km).
  • birthright citizenship — the practice of automatically granting citizenship to a child born in a particular country, regardless of the citizenship status of the parent or parents: an end to birthright citizenship.
  • black hole of calcutta — a small dungeon in which in 1756 the Nawab of Bengal reputedly confined 146 English prisoners, of whom only 23 survived
  • black-scholes equation — a partial differential equation used to estimate the changing value of an option over time
  • bleeding-heart liberal — a person of left-wing or liberal views who is deemed to be excessively soft-hearted
  • blow one's own trumpet — to boast of one's own skills or good qualities
  • bone marrow transplant — the transplantation of bone marrow from donor to recipient
  • bone-marrow transplant — Surgery. a technique in which a small amount of bone marrow is withdrawn by a syringe from a donor's pelvic bone and injected into a patient whose ability to make new blood cells has been impaired by a disease, as anemia or cancer, or by exposure to radiation.
  • book of original entry — a book in which transactions are recorded before being transferred into a ledger.
  • borderline personality — Psychiatry. a personality disorder characterized by instability in many areas, as mood, identity, self-image, and behavior, and often manifested by impulsive actions, suicide attempts, inappropriate anger, or depression.
  • borel-lebesgue theorem — Heine-Borel theorem.
  • born in/out of wedlock — If a baby is born in wedlock, it is born while its parents are married. If it is born out of wedlock, it is born at a time when its parents are not married.
  • brachiocephalic artery — a major artery, arising from the arch of the aorta, that supplies blood to the right arm and the head.
  • bread-and-butter model — Naval Architecture. a wooden hull model carved from a number of horizontal planks glued together to represent the outlines of the various decks.
  • break (or keep) faith — to be disloyal (or loyal) to one's beliefs, principles, etc.
  • bring down the curtain — If something brings down the curtain on an event or situation, it causes or marks the end of it.
  • bristle-thighed curlew — an Alaskan curlew, Numenius tahitiensis, that winters in Polynesia, having bristlelike feathers on its thighs.
  • british library method — (algorithm)   Brute force searching. According to legends circulating in the 1970s, in the British Library books are searched for by examining each book sequentially in the first shelf, then the next shelf, continuing until the book is found or the entire library has been searched. The term was referred to in a Dutch coursebook, "Inleiding In De Informatica" (Introduction to Informatics) from a course given by C.H.A. Koster and Th.A. Zoethout. This was based on a course given at the TU Berlin.
  • british national party — a far-right political party
  • british virgin islands — a UK Overseas Territory in the Caribbean, consisting of 36 islands in the E Virgin Islands: formerly part of the Federation of the Leeward Islands (1871–1956). Capital: Road Town, on Tortola. Pop: 31 912 (2013 est). Area: 153 sq km (59 sq miles)
  • brush-footed butterfly — any of several butterflies of the family Nymphalidae, including the fritillaries, mourning cloaks, anglewings, and commas, characterized by reduced, nonfunctional forelegs.
  • buffered write-through — (memory management)   A variation of write-through where the cache uses a "write buffer" to hold data being written back to main memory. This frees the cache to service read requests while the write is taking place. There is usually only one stage of buffering so subsequent writes must wait until the first is complete. Most accesses are reads so buffered write-through is only useful for very slow main memory.
  • bug-for-bug compatible — Same as bug-compatible, with the additional implication that much tedious effort went into ensuring that each (known) bug was replicated.
  • carboxymethylcellulose — a white, water-soluble polymer derived from cellulose, used as a coating and sizing for paper and textiles, a stabilizer for various foods, and an appetite suppressor.
  • catch/take sb unawares — If something catches you unawares or takes you unawares, it happens when you are not expecting it.
  • charity begins at home — If you say charity begins at home, you mean that people should deal with the needs of people close to them before they think about helping others.
  • chebyshev's inequality — the fundamental theorem that the probability that a random variable differs from its mean by more than k standard deviations is less than or equal to 1/k2
  • chicago board of trade — a major exchange in the United States that deals in futures, notably of grains and metals. Abbreviation: CBT.
  • chip off the old block — a person who resembles one of his or her parents in behaviour
  • chromosomal aberration — any irregularity or abnormality of chromosome distribution, number, structure, or arrangement.
  • church of the brethren — the official name of the church of the Dunkers.
  • city of brotherly love — Philadelphia, Pa. (used as a nickname).
  • coiled tubing drilling — Coiled tubing drilling is drilling using a narrow (1.75 to 3.5in) seamless tube of high-grade steel, wound onto a reel.
  • colorado potato beetle — a black and yellow leaf beetle, Leptinotarsa decemlineata, originally of Colorado and neighboring states but now a common pest in all potato-growing regions of the U.S.
  • combinatorial analysis — the branch of mathematics concerned with the theory of enumeration, or combinations and permutations, in order to solve problems about the possibility of constructing arrangements of objects which satisfy specified conditions
  • combinatorial topology — the branch of topology that deals with the properties of geometric figures by considering the figures as being composed of elementary geometric figures, as points or lines.
  • component object model — (programming)   (COM) An open software architecture from DEC and Microsoft, allowing interoperation between ObjectBroker and OLE. Microsoft evolved COM into DCOM. On page XV of Box's book in the foreword by Charlie Kindel he says, "It is Mark Ryland's fault that some people call COM the 'Common Object Model.' He deeply regrets it and apologizes profusely."
  • conscientious objector — A conscientious objector is a person who refuses to join the armed forces because they think that it is morally wrong to do so.
  • consummatory behaviour — any behaviour that leads directly to the satisfaction of an innate drive, e.g. eating or drinking
  • contingent beneficiary — a person who becomes the beneficiary if the primary beneficiary dies or is otherwise disqualified.
  • convertible loan stock — a stock or bond that can be converted into a stated number of shares at a particular date
  • crankshaft end bearing — The crankshaft end bearing is the bearing between the connecting rod and the crankshaft of an internal combustion engine.
  • d'alembert's principle — the principle that for a moving body the external forces are in equilibrium with the inertial forces; a generalization of Newton's third law of motion
  • database administrator — (job)   A person responsible for the design and management of one or more databases and for the evaluation, selection and implementation of database management systems. In smaller organisations, the data administrator and database administrator are often one in the same; however, when they are different, the database administrator's function is more technical. The database administrator would implement the database software that meets the requirements outlined by the organisation's data administrator and systems analysts. Tasks might include controling an organisation's data resources, using data dictionary software to ensure data integrity and security, recovering corrupted data and eliminating data redundancy and uses tuning tools to improve database performance.
  • database normalisation — (database)   A series of steps followed to obtain a database design that allows for efficient access and storage of data in a relational database. These steps reduce data redundancy and the chances of data becoming inconsistent. A table in a relational database is said to be in normal form if it satisfies certain constraints. Codd's original work defined three such forms but there are now five generally accepted steps of normalisation. The output of the first step is called First Normal Form (1NF), the output of the second step is Second Normal Form (2NF), etc. First Normal Form eliminates repeating groups by putting each value of a multi-valued attribute into a new row. Second Normal Form eliminates functional dependencies on a partial key by putting the fields in a separate table from those that are dependent on the whole key. Third Normal Form eliminates functional dependencies on non-key fields by putting them in a separate table. At this stage, all non-key fields are dependent on the key, the whole key and nothing but the key. Fourth Normal Form separates independent multi-valued facts stored in one table into separate tables. Fifth Normal Form breaks out data redundancy that is not covered by any of the previous normal forms.
  • de broglie wave length — the postulate of wave mechanics that a particle of mass m moving at a velocity v will have the properties of a wave of wavelength h / mv (de Broglie wavelength) where h is Planck's constant.
  • debt collection agency — a company that collects debts on behalf of creditors
  • deoxyribonucleoprotein — any of a class of nucleoproteins that yield DNA upon partial hydrolysis.
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