16-letter words containing a, c, o, u
- australopithecus — an extinct genus of small-brained,large-toothed bipedal hominids that lived in Africa between one and four million years ago.
- authentification — The process of making, or establishing as, authentic.
- autobiographical — An autobiographical piece of writing relates to events in the life of the person who has written it.
- autodidactically — a person who has learned a subject without the benefit of a teacher or formal education; a self-taught person.
- autoethnographic — Using ethnographic techniques to describe one's own life, or events in which one is a participant.
- autofluorescence — (biology, microscopy) Self-induced fluorescence.
- autointoxication — self-poisoning caused by absorption of toxic products originating within the body
- automatic camera — a camera in which the lens aperture or the shutter speed or both are automatically adjusted to the prevailing conditions
- automatic pistol — a type of pistol having a mechanism that throws out the empty shell, puts in a new one, and prepares the pistol to be fired again.
- automatic redial — a telephone service feature whereby the last number dialed is automatically called again, either after a specified time or when activated by the user.
- automatic repeat — a key on the keyboard of a typewriter, computer, etc, which, when depressed continuously, produces the character repeatedly until the key is released
- automatrix, inc. — (company) The company which produced CAM-PC. Address: Ballston Spa, NY, USA.
- autoradiographic — Of or pertaining to an autoradiograph, a radiographic image produced by the decay of a radioactive substance.
- autostereoscopic — Of or pertaining to autostereoscopy.
- auxiliary police — a part-time reserve attached to a regular police force
- background check — an investigation into a person's origins and previous history
- background music — music of any kind that is played while some other activity is going on, so that people do not actively attend to it
- background noise — any type of noise that is not the sound that you are specifically listening to or monitoring
- background paper — a report or other piece of writing that is intended to provide contextual and historical information that will help people understand a particular topic or situation
- backus-naur form — (language, grammar) (BNF, originally "Backus Normal Form") A formal metasyntax used to express context-free grammars. Backus Normal Form was renamed Backus-Naur Form at the suggestion of Donald Knuth. BNF is one of the most commonly used metasyntactic notations for specifying the syntax of programming languages, command sets, and the like. It is widely used for language descriptions but seldom documented anywhere (how do you document a metasyntax?), so that it must usually be learned by osmosis (but see RFC 2234). Consider this BNF for a US postal address:
::= ::= | "." ::= [ ] | ::= [ ] ::= "," This translates into English as: "A postal-address consists of a name-part, followed by a street-address part, followed by a zip-code part. A personal-part consists of either a first name or an initial followed by a dot. A name-part consists of either: a personal-part followed by a last name followed by an optional "jr-part" (Jr., Sr., or dynastic number) and end-of-line, or a personal part followed by a name part (this rule illustrates the use of recursion in BNFs, covering the case of people who use multiple first and middle names and/or initials). A street address consists of an optional apartment specifier, followed by a street number, followed by a street name. A zip-part consists of a town-name, followed by a comma, followed by a state code, followed by a ZIP-code followed by an end-of-line." Note that many things (such as the format of a personal-part, apartment specifier, or ZIP-code) are left unspecified. These lexical details are presumed to be obvious from context or specified somewhere nearby. There are many variants and extensions of BNF, possibly containing some or all of the regexp wild cards such as "*" or "+". EBNF is a common one. In fact the example above isn't the pure form invented for the ALGOL 60 report. "[]" was introduced a few years later in IBM's PL/I definition but is now universally recognised. ABNF is another extension. - bankruptcy court — a section of the United States federal court which specializes in the handling of bankruptcy cases
- bankruptcy order — a court order appointing a receiver to manage the property of a debtor or bankrupt
- barbecue stopper — a controversial current-affairs issue
- barium carbonate — a white, poisonous, water-insoluble powder, BaCO 3 , used chiefly in the manufacture of rodenticides, paints, and dyes.
- basic vocabulary — the set of lexical items in a language that are most resistant to replacement, referring to the most common and universal elements of human experience, such as parts of the body (foot, eye), universal features of the environment (water, star), common activities (eat, sleep), and the lowest numerals.
- basque provinces — an autonomous region of N Spain, comprising the provinces of Álava, Guipúzcoa, and Vizcaya: inhabited mainly by Basques, who retained virtual autonomy from the 9th to the 19th century. Pop: 1 840 700 (2003 est). Area: about 7250 sq km (2800 sq miles)
- batch production — production of goods in batches, rather than continuously
- binocular fusion — fusion (def 5a).
- binocular-fusion — the act or process of fusing; the state of being fused.
- biological value — the nutritional effectiveness of the protein in a given food, expressed as the percentage used by the body of either the total protein consumed or the digestible protein available.
- bordelaise sauce — a dark sauce made from meat stock, flour, wine, onions, seasonings, etc., served over broiled meat
- bowman's capsule — a membranous, double-walled capsule surrounding a glomerulus of a nephron.
- branchiopneustic — breathing by means of gills, as certain aquatic insect larvae.
- british columbia — a province of W Canada, on the Pacific coast: largely mountainous with extensive forests, rich mineral resources, and important fisheries. Capital: Victoria. Pop: 4 400 057 (2011 est). Area: 930 532 sq km (359 279 sq miles)
- bronchopneumonia — inflammation of the lungs, originating in the bronchioles
- buckthorn family — the plant family Rhamnaceae, characterized by shrubs and trees having alternate, simple leaves, clusters of small flowers, and fruit in the form of a drupe or capsule, and including the buckthorn, cascara, and New Jersey tea.
- buoyancy chamber — an enclosed section of a canoe, float, ship or other object that contains air, foam, or another buoyant substance in order to help maintain buoyancy
- business account — a bank account or type of bank account used for business transactions rather than personal ones
- butenedioic acid — either of two geometrical isomers with the formula HOOCCH:CHCOOH
- calcium chloride — a white deliquescent salt occurring naturally in seawater and used in the de-icing of roads and as a drying agent. Formula: CaCl2
- calcium fluoride — a white, crystalline compound, CaF 2 , insoluble in water, occurring in nature as the mineral fluorite: used as a flux in metallurgy and as a decay preventive in dentifrices.
- california quail — a quail, Callipepla californica, of the western coast of the U.S., having grayish-brown plumage with black, white, and chestnut markings.
- call in question — a sentence in an interrogative form, addressed to someone in order to get information in reply.
- call to quarters — a bugle call shortly before taps, notifying soldiers to retire to their quarters
- camborne-redruth — a former (until 1974) urban district in SW England, in Cornwall: formed in 1934 by the amalgamation of the neighbouring towns of Camborne and Redruth. Pop: 39 936 (2001)
- can you beat it? — an expression of utter amazement or surprise
- can-not help but — to give or provide what is necessary to accomplish a task or satisfy a need; contribute strength or means to; render assistance to; cooperate effectively with; aid; assist: He planned to help me with my work. Let me help you with those packages.
- cantankerousness — disagreeable to deal with; contentious; peevish: a cantankerous, argumentative man.
- capsule wardrobe — a collection of clothes and accessories that includes only items considered essential
- carbon bisulfide — carbon disulfide