21-letter words containing a, b, e, m
- absorption hygrometer — a hygrometer that uses a hygroscopic chemical to absorb atmospheric moisture.
- aerodynamic stability — Aerodynamic stability is the way that a moving vehicle reacts to changes in air caused by passing vehicles.
- airborne command post — any of several converted commercial aircraft equipped with special communications and code gear, intended as flying bunkers for the president, secretary of defense, military commanders, or their designated replacements.
- alexander graham bell — Acton [ak-tuh n] /ˈæk tən/ (Show IPA) pen name of Anne Brontë.
- antiballistic missile — a missile designed to destroy an incoming ballistic missile before it reaches its target
- as cool as a cucumber — If you say that someone is as cool as a cucumber, you are emphasizing that they are very calm and relaxed, especially when you would not expect them to be.
- baton de commandement — an antler object found in Upper Palaeolithic sites from the Aurignacian period onwards, consisting of a rod, often ornately decorated, with a hole through the thicker end
- be (one) too many for — to defeat; overwhelm
- beam in one's own eye — a major moral flaw in oneself which one ignores while criticizing minor faults in others
- behavior modification — a technique that seeks to modify animal and human behavior through application of the principles of conditioning, in which rewards and reinforcements, or punishments, are used to establish desired habits, or patterns of behavior
- behind someone's back — without someone's knowledge or consent
- benzalkonium chloride — a white or yellowish-white, water-soluble mixture of ammonium chloride derivatives having the structure C 8 H 10 NRCl, where R is a mixture of radicals ranging from C 8 H 17 – to C 18 H 37 –, that occurs as an amorphous powder or in gelatinous lumps: used chiefly as an antiseptic and a disinfectant.
- bicameral legislature — two-chamber lawmaking system
- binding-time analysis — (compiler) An analysis to identify sub-expressions which can be evaluated at compile-time or where versions of a function can be generated and called which are specialised to certain values of one or more arguments. See partial evaluation.
- binomial nomenclature — a system for naming plants and animals by means of two Latin names: the first indicating the genus and the second the species to which the organism belongs, as in Panthera leo (the lion)
- black-headed fireworm — the larva of any of several moths, as Rhopobota naevana (black-headed fireworm) which feeds on the leaves of cranberries and causes them to wither.
- book of common prayer — the official book of church services of the Church of England, until 1980, when the Alternative Service Book was sanctioned
- bottlebrush moustache — a short, bristly moustache
- brainstorming session — a meeting held for the purpose of intensive discussion to solve problems or generate ideas
- break someone's heart — an act or instance of breaking; disruption or separation of parts; fracture; rupture: There was a break in the window.
- british north america — (formerly) Canada or its constituent regions or provinces that formed part of the British Empire
- british standard time — the standard time used in Britain all the year round from 1968 to 1971, set one hour ahead of Greenwich Mean Time and equalling Central European Time
- broadleaved whitebeam — a whitebeam, Sorbus latifolia, widely found in France and England, also planted as an ornamental
- bromine pentafluoride — a colorless, corrosive liquid, BrF 5 , used as an oxidizer in liquid rocket propellants.
- bryan-chamorro treaty — a treaty (1914) between the U.S. and Nicaragua by which the U.S. secured exclusive rights to build a canal across Nicaragua, to connect the Atlantic and Pacific.
- 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.
- bursting at the seams — If a place is very full, you can say that it is bursting at the seams.
- businessman's holiday — busman's holiday.
- by fair means or foul — If someone tries to achieve something by fair means or foul, they use every means possible in order to achieve it, and they do not care if their behaviour is dishonest or unfair.
- by no manner of means — definitely not
- chequebook journalism — Chequebook journalism is the practice of paying people large sums of money for information about crimes or famous people in order to get material for newspaper articles.
- 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.
- comfortably-furnished — containing comfortable furniture
- constant mesh gearbox — A constant mesh gearbox is a type of transmission in which all forward gear pairs remain engaged.
- consummatory behavior — a behavior pattern that occurs in response to a stimulus and that achieves the satisfaction of a specific drive, as the eating of captured prey by a hungry predator (distinguished from appetitive behavior).
- countably compact set — a set for which every cover consisting of a countable number of sets has a subcover consisting of a finite number of sets.
- death by misadventure — a possible verdict in a coroner's court, indicating that death was due to an accident not to a crimes or somebody's negligence
- decompression chamber — a chamber in which the pressure of air can be varied slowly for returning people from abnormal pressures to atmospheric pressure without inducing decompression sickness
- developmental biology — the study of the development of multicellular organisms, including the study of the earliest stages of embryonic structure and tissue differentiation
- disestablishmentarian — a person who favors the separation of church and state, especially the withdrawal of special rights, status, and support granted an established church by a state; an advocate of disestablishing a state church.
- distributed smalltalk — ["The Design and Implementation of Distributed Smalltalk", J. Bennett, SIGPLAN Notices 22(12):318-330 (Dec 1980)].
- embarras de richesses — a superfluous abundance of options, from which one finds it difficult to select
- empire state building — New York City skyscraper
- empirical probability — a measure or estimate of the degree of confidence one may have in the occurrence of an event, defined as the proportion observed in a sample
- empty the wastebasket — If you empty the wastebasket, you remove its contents and put them in the trash.
- epidermolysis bullosa — type of genetic skin disorder
- faculty board meeting — a meeting of the governing body of a faculty
- franco-belgian system — French system.
- from dan to beersheba — from one end of Israel to the other: Judg. 20:1
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