16-letter words containing a, b, c, t, o
- blink comparator — an optical instrument used to detect small differences in two photographs of the same field or object by viewing them alternately, switching rapidly from one to the other.
- block and tackle — a hoisting device in which a rope or chain is passed around a pair of blocks containing one or more pulleys. The upper block is secured overhead and the lower block supports the load, the effort being applied to the free end of the rope or chain
- blow one's stack — to lose one's temper; fly into a rage
- bomb calorimeter — a device for determining heats of combustion by igniting a sample in a high pressure of oxygen in a sealed vessel and measuring the resulting rise in temperature: used for measuring the calorific value of foods
- boston cream pie — a cake of two layers with icing and a creamy filling
- botanical garden — a place where collections of plants and trees are kept for scientific study and exhibition
- bracknell forest — a unitary authority in SE England, in E Berkshire. Pop: 110 100 (2003 est). Area: 109 sq km (42 sq miles)
- branchiopneustic — breathing by means of gills, as certain aquatic insect larvae.
- break the record — surpass previous highest, best
- brick-and-mortar — pertaining to conventional stores, businesses, etc., having physical buildings and facilities, as opposed to Internet or remote services.
- 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)
- broadloom carpet — any carpet woven on a wide loom and not having seams, especially one wider than 54 inches (137 cm).
- bronchial asthma — asthma.
- 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.
- 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
- bypass capacitor — a capacitor which provides a low-impedance path for alternating current while not passing any direct current
- cabbage palmetto — a tropical American fan palm, Sabal palmetto, with edible leaf buds and leaves used in thatching
- cabbage root fly — a dipterous fly, Erioischia brassicae, whose larvae feed on the roots and stems of cabbages and other brassicas: family Muscidae (houseflies, etc)
- cable television — Cable television is a television system in which signals are sent along wires rather than by radio waves.
- 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.
- capacity booking — a time when someone has booked the whole of a venue or the maximum amount of something available
- carbon 14 dating — radiocarbon dating.
- carbon footprint — Your carbon footprint is a measure of the amount of carbon dioxide released into the atmosphere by your activities over a particular period.
- carbon-14 dating — radiocarbon dating.
- carboxylesterase — (enzyme) Any enzyme that catalyses the hydrolysis of a carboxylic ester.
- carboxypeptidase — any of several digestive enzymes that catalyze the removal of an amino acid from the end of a peptide chain having a free carbonyl group.
- cathode ray tube — (hardware) (CRT) An electrical device for displaying images by exciting phosphor dots with a scanned electron beam. CRTs are found in computer VDUs and monitors, televisions and oscilloscopes. The first commercially practical CRT was perfected on 29 January 1901 by Allen B DuMont. A large glass envelope containing a negative electrode (the cathode) emits electrons (formerly called "cathode rays") when heated, as in a vacuum tube. The electrons are accelerated across a large voltage gradient toward the flat surface of the tube (the screen) which is covered with phosphor. When an electron strikes the phosphor, light is emitted. The electron beam is deflected by electromagnetic coils around the outside of the tube so that it scans across the screen, usually in horizontal stripes. This scan pattern is known as a raster. By controlling the current in the beam, the brightness at any particular point (roughly a "pixel") can be varied. Different phosphors have different "persistence" - the length of time for which they glow after being struck by electrons. If the scanning is done fast enough, the eye sees a steady image, due to both the persistence of the phospor and of the eye itself. CRTs also differ in their dot pitch, which determines their spatial resolution, and in whether they use interlace or not.
- cathode-ray tube — A cathode-ray tube is a device in televisions and computer terminals which sends an image onto the screen.
- chamber of trade — a national organization representing local chambers of commerce
- chernobyl packet — (networking) /cher-noh'b*l pak'*t/ A network packet that induces a broadcast storm and/or network meltdown, named in memory of the April 1986 nuclear accident at Chernobyl in Ukraine. The typical scenario involves an IP Ethernet datagram that passes through a gateway with both source and destination Ethernet address and IP address set as the respective broadcast addresses for the subnetworks being gated between. Compare Christmas tree packet.
- chiclet keyboard — (hardware, abuse) A keyboard with a small, flat rectangular or lozenge-shaped rubber or plastic keys that look like pieces of Chiclets chewing gum. Used especially to describe the original IBM PCjr keyboard. Vendors unanimously liked these because they were cheap, and a lot of early portable and laptop computers were launched with them. Customers rejected the idea with almost equal unanimity, and chiclets are not often seen on anything larger than a digital watch any more.
- chomp at the bit — champ at the bit (see phrase under champ1)
- chromatic number — (mathematics) The smallest number of colours necessary to colour the nodes of a graph so that no two adjacent nodes have the same colour. See also: four colour map theorem.
- circumambulation — The act of walking around something in a circle, especially for a ritual purpose.
- city of aberdeen — a council area in NE Scotland, established in 1996. Pop: 206 600 (2003 est). Area: 186 sq km (72 sq miles)
- close by/at hand — Something that is close by or close at hand is near to you.
- cocktail cabinet — a cupboard in which glasses and bottles are kept
- collaborationism — The act of collaborating, especially with an enemy.
- collaborationist — A collaborationist government or individual is one that helps or gives support to the enemy during the war.
- columbia heights — a city in SE Minnesota, near Minneapolis.
- combination door — an outside door having a frame into which different types of panels can be inserted, as a screen for summer or storm sash for winter.
- combination drug — a medication comprised of set dosages of two or more separate drugs.
- combination last — a shoe last that has a narrower heel or instep than the standard last.
- combination lock — A combination lock is a lock which can only be opened by turning a dial or a number of dials according to a particular series of letters or numbers.
- combination room — (at Cambridge University) a common room
- combination shot — a shot in pool in which the cue ball strikes at least one object ball before contact is made with the ball to be pocketed.
- combination skin — facial skin that is dry in some areas and greasy in others