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21-letter words containing t, r, o, e

  • buffalo 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)
  • bulletin board system — (communications, application)   (BBS, bboard /bee'bord/, message board, forum; plural: BBSes) A computer and associated software which typically provides an electronic message database where people can log in and leave messages. Messages are typically split into topic groups similar to the newsgroups on Usenet (which is like a distributed BBS). Any user may submit or read any message in these public areas. The term comes from physical pieces of board on which people can pin messages written on paper for general consumption - a "physical bulletin board". Ward Christensen, the programmer and operator of the first BBS (on-line 1978-02-16) called it a CBBS for "computer bulletin board system". Since the rise of the World-Wide Web, the term has become antiquated, though the concept is more popular than ever, with many websites featuring discussion areas where users can post messages for public consumption. Apart from public message areas, some BBSes provided archives of files, personal electronic mail and other services of interest to the system operator (sysop). Thousands of BBSes around the world were run from amateurs' homes on MS-DOS boxes with a single modem line each. Although BBSes were traditionally the domain of hobbyists, many connected directly to the Internet (accessed via telnet), others were operated by government, educational, and research institutions. Fans of Usenet or the big commercial time-sharing bboards such as CompuServe, CIX and GEnie tended to consider local BBSes the low-rent district of the hacker culture, but they helped connect hackers and users in the personal-micro and let them exchange code. Use of this term for a Usenet newsgroup generally marks one either as a newbie fresh in from the BBS world or as a real old-timer predating Usenet.
  • burn the midnight oil — to work or study late into the night
  • butterfly common lisp — A parallel version of Common LISP for the BBN Butterfly computer.
  • byte-code interpreter — (software)   A program that executes a byte code program. An example is the Java Virtual Machine.
  • cantilever foundation — a building foundation supporting its load partly or wholly upon cantilevers.
  • cartesian coordinates — a system of representing points in space in terms of their distance from a given origin measured along a set of mutually perpendicular axes. Written (x,y,z) with reference to three axes
  • category merchandiser — A category merchandiser is a person whose job is to maintain stocks, manage displays and promote sales of a certain product category such as footwear.
  • catherine of braganza — 1638–1705, wife of Charles II of England, daughter of John IV of Portugal
  • caviar to the general — a thing appealing only to a highly cultivated taste: Hamlet II, ii
  • central european time — the standard time adopted by Western European countries one hour ahead of Greenwich Mean Time, corresponding to British Summer Time
  • central limit theorem — any of several theorems stating that the sum of a number of random variables obeying certain conditions will assume a normal distribution as the number of variables becomes large.
  • certificate authority — (cryptography, body)   (CA or "Trusted Third Party") An entity (typically a company) that issues digital certificates to other entities (organisations or individuals) to allow them to prove their identity to others. A Certificate Authority might be an external company such as VeriSign that offers digital certificate services or they might be an internal organisation such as a corporate MIS department. The Certificate Authority's chief function is to verify the identity of entities and issue digital certificates attesting to that identity. The process uses public key cryptography to create a "network of trust". If I want to prove my identity to you, I ask a CA (who you trust to have verified my identity) to encrypt a hash of my signed key with their private key. Then you can use the CA's public key to decrypt the hash and compare it with a hash you calculate yourself. Hashes are used to decrease the amount of data that needs to be transmitted. The hash function must be cryptographically strong, e.g. MD5.
  • certificate of origin — a document stating the name of the country that produced a specified shipment of goods: often required before importation of goods
  • character development — the portrayal of people in a work of fiction in such a way that the reader or audience seems to learn more about them as they develop
  • character recognition — Character recognition is a process which allows computers to recognize written or printed characters such as numbers or letters and to change them into a form that the computer can use.
  • characteristic vector — a vector for which there exists a scalar such that the value of the vector under a given transformation is equal to the scalar times the vector.
  • charity commissioners — (in Britain) members of a commission constituted to keep a register of charities and control charitable trusts
  • charterhouse of parma — a novel (1839) by Stendhal.
  • chief warrant officer — a senior-ranking warrant officer in various armed forces
  • chinese forget-me-not — an eastern Asian plant, Cynoglossum amabile, of the borage family, having lance-shaped leaves and clustered, showy, blue, pink, or white flowers.
  • chinese water torture — a form of torture in which water is made to drip for a long period of time onto a victim's forehead to drive him insane
  • christmas decorations — decorations of different kinds appropriate to Christmas, such as tinsel, candles, images of angels, etc.
  • church-rosser theorem — (theory)   A property of a reduction system that states that if an expression can be reduced by zero or more reduction steps to either expression M or expression N then there exists some other expression to which both M and N can be reduced. This implies that there is a unique normal form for any expression since M and N cannot be different normal forms because the theorem says they can be reduced to some other expression and normal forms are irreducible by definition. It does not imply that a normal form is reachable, only that if reduction terminates it will reach a unique normal form.
  • circle of declination — hour circle.
  • civil rights movement — campaign for human freedoms
  • class-relation method — (programming)   A design technique based on the concepts of object-oriented programming and the Entity-Relationship model from the French company Softeam.
  • clayton-bulwer treaty — an agreement between the U.S. and Great Britain in 1850 guaranteeing that any canal built to connect the Atlantic and Pacific across Central America would be jointly controlled, open to all nations, and unfortified.
  • clement of alexandria — Saint. original name Titus Flavius Clemens. ?150–?215 ad, Greek Christian theologian: head of the catechetical school at Alexandria; teacher of Origen. Feast day: Dec 5
  • clerk to the justices — (in England) a legally qualified person who sits in court with lay justices to advise them on points of law
  • clostridium difficile — Clostridium difficile is a bacterium that causes severe diarrhoea. It is commonly found in hospitals. C.diff is also used.
  • collective bargaining — When a trade union engages in collective bargaining, it has talks with an employer about its members' pay and working conditions.
  • collimator viewfinder — a type of viewfinder in a camera
  • collins street farmer — a businessman who invests in farms, land, etc
  • column address strobe — (hardware)   (CAS) A signal sent from a processor (or memory controller) to a dynamic random-access memory (DRAM) (qv) circuit to indicate that the column address lines are valid.
  • combination principle — Ritz combination principle.
  • come in from the cold — to come out of exile, isolation, etc.; resume an active role
  • comfortably-furnished — containing comfortable furniture
  • commercial fertilizer — fertilizer manufactured chemically, as distinguished from natural fertilizer, as manure.
  • commercial television — television companies which make money by selling advertising
  • commercial translator — (language)   An English-like pre-COBOL language for business data processing.
  • committal proceedings — a preliminary hearing in a magistrates' court to decide if there is a case to answer
  • committing magistrate — a magistrate who decides if there is enough evidence for a case to proceed
  • common carotid artery — the part of a carotid artery between its origin and its point of division into branches.
  • communications server — (operating system)   IBM's rebranding of ACF.
  • companionate marriage — a proposed system of trial marriage in which the couple would postpone having children and could be divorced by mutual consent, until a final decision to stay married is reached
  • comparative philology — comparative linguistics.
  • comparative statement — a financial statement with figures arranged in two or more parallel columns, each column representing a fiscal year or other period, used to compare performance between periods.
  • compensation neurosis — an unconscious attempt to retain physical or psychological symptoms of illness when some advantage may be obtained (distinguished from malingering).
  • complete metric space — (theory)   A metric space in which every sequence that converges in itself has a limit. For example, the space of real numbers is complete by Dedekind's axiom, whereas the space of rational numbers is not - e.g. the sequence a[0]=1; a[n_+1]:=a[n]/2+1/a[n].
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