23-letter words containing b, o, t, l, e, r
- allowance for bad debts — Allowance for bad debt is a provision made in a company's accounts which recognizes that some debts will not be able to be collected.
- animal liberation front — an animal-rights movement founded in Britain, often using direct action
- atrioventricular bundle — a bundle of specialized muscle fibers regulating the heartbeat by conducting impulses from the right atrium to the ventricles.
- australopithecus boisei — an extinct species of very rugged, large-toothed bipedal hominid, formerly known as Zinjanthropus boisei, that lived in eastern Africa one to two million years ago.
- bachelor of arts degree — a degree conferred on a person who has successfully completed his or her undergraduate studies, usually in a branch of the liberal arts or humanities
- barrister and solicitor — an attorney who is licensed to prepare cases and argue them in court in the common-law provinces of Canada and in New Zealand and Australia.
- battered child syndrome — the array of physical injuries exhibited by young children who have been beaten repeatedly or otherwise abused by their parents or guardians.
- bellefontaine neighbors — a city in E Missouri.
- bereavement counselling — the provision of advice for bereaved people to help them cope with their grief, sometimes given by charities and support groups
- bet one's bottom dollar — to bet one's last dollar; bet everything one has
- beyond reasonable doubt — if something is proved beyond reasonable doubt, it is legally accepted as being true
- bilinear transformation — Möbius transformation.
- bird-meertens formalism — (theory, programming) (BMF) (Or "Squiggol") A calculus for derivation of functional programs from a specification. It consists of a set of higher-order functions that operate on lists including map, fold, scan, filter, inits, tails, cross product and function composition.
- black-throated whipbird — an Australian whipbird, Psophodes nigrogularis
- block started by symbol — (memory) (BSS) The uninitialised data segment produced by Unix linkers. Objects in the bss segment have only a name and a size but no value. Executable code is located in the code segment and initialised data in the data segment.
- blog-driven development — cut-and-waste code
- blood, sweat, and tears — If you refer to something as involving blood, sweat, and tears, you mean that it is a very hard thing to do and requires a lot of effort.
- border gateway protocol — (BGP) An Exterior Gateway Protocol defined in RFC 1267 and RFC 1268. Its design is based on experience gained with Exterior Gateway Protocol (EGP), as defined in STD 18, RFC 904 and EGP usage in the NSFNet backbone, as described in RFCs 1092 and 1093.
- broadcast quality video — (communications, multimedia) Roughly, video with more than 30 frames per second at a resolution of 800 x 640 pixels. The quality of moving pictures and sound is determined by the complete chain from camera to receiver. Relevant factors are the colour temperature of the lighting, the balance of the red, green and blue vision pick-up tubes to produce the correct display colour temperature (which will be different) and the gamma pre-correction to cancel the non-linear characteristic of cathode-ray tubes in television receivers. The resolution of the camera tube and video coding system will determine the maximum number of pixels in the picture. Different colour coding systems have different defects. The NTSC system (National Television Systems Committee) can produce hue errors. The PAL system (Phase Alternation by Line) can produce saturation errors. Television modulation systems are specified by ITU CCIR Report 624. Low-resolution systems have bandwidths of 4.2 MHz with 525 to 625 lines per frame as used in the Americas and Japan. Medium resolution of 5 to 6.5 MHz with 625 lines is used in Europe, Asia, Africa and Australasia. High-Definition Television (HDTV) will require 8 MHz or more of bandwidth. A medium resolution (5.5 MHz in UK) picture can be represented by 572 lines of 402 pixels. Note the ratio of pixels to lines is not the same as the aspect ratio. A VGA display (480n lines of 640 pixels) could thus display 84% of the height of one picture frame. Most compression techniques reduce quality as they assume a restricted range of detail and motion and discard details to which the human eye is not sensitive. Broadcast quality implies something better than amateur or domestic video and therefore can't be retained on a domestic video recorder. Broadcasts use quadriplex or U-matic recorders. The lowest frame rate used for commercial entertainment is the 24Hz of the 35mm cinema camera. When broadcast on a 50Hz television system, the pictures are screened at 25Hz reducing the running times by 4%. On a 60Hz system every five movie frames are screened as six TV frames, still at the 4% increased rate. The six frames are made by mixing adjacent frames, with some degradation of the picture. A computer system to meet international standard reproduction would at least VGA resolution, an interlaced frame rate of 24Hz and 8 bits to represent the luminance (Y) component. For a component display system using red, green and blue (RGB) electron guns and phosphor dots each will require 7 bits. Transmission and recording is different as various coding schemes need less bits if other representations are used instead of RGB. Broadcasts use YUV and compression can reduce this to about 3.5 bits per pixel without perceptible degradation. High-quality video and sound can be carried on a 34 Mbaud channel after being compressed with ADPCM and variable length coding, potentially in real time.
- civil aeronautics board — the former federal agency (1938–85) that regulated airline fares and assigned routes. Abbreviation: CAB, C.A.B.
- combinatorial chemistry — the use of chemical methods to generate all possible combinations of chemicals
- compact disc recordable — (storage) (CD-R) A write-once version of CD-ROM. CD-Rs can hold about 650 megabytes of data. They are very durable and can be read by normal CD-ROM drives, but once data has been written it cannot be altered. Standard prerecorded CDs have their information permanently stamped into an aluminium reflecting layer. CD-R discs have a dye-based recording layer and an additional golden reflecting layer. Digital information is written to the disc by burning (forming) pits in the recording layer in a pattern corresponding to that of a conventional CD. The laser beam heats the substrate and recording layer to approximately 250 C. The recording layer melts and the substrate expands into the space that becomes available. See also CD-RW and DVD-RAM.
- compact disc rewritable — (storage) (CD-RW) A rewritable version of CD-ROM. A CD-RW drive can write about 650 megabytes of data to CD-RW media an unlimited number of times. Most CD-RW drives can also write once to CD-R media. CD-RW media cannot be read by CD-ROM drives built prior to 1997 due to the reduced reflectivity (15% compared to 70%) of CD-RW media. CD-RW drives and media are currently (1999) more expensive than CD-R drives and media. CD-R is sometimes considered a better technology for archival purposes as the data cannot be accidentally modified or tampered with, and encourages better archival practices. Standard prerecorded CDs have their information permanently stamped into an aluminium reflecting layer. CD-WR discs have a phase-change recording layer and an additional silver (aluminium) reflecting layer. A laser beam can melt crystals in the recording layer into a non-crystalline amorphous phase or anneal them slowly at a lower temperature back to the crystalline state. The different reflectance of the areas make them appear as the 'pits' and 'lands' of a standard CD. See also CD-R and DVD-RAM.
- contributory negligence — failure by an injured person to have taken proper precautions to prevent an accident
- diamondback rattlesnake — either of two large, highly venomous rattlesnakes of the genus Crotalus, having diamond-shaped markings on the back.
- differentiable manifold — a manifold having the property that any two overlapping open sets are homeomorphic to locally Euclidean spaces whose coordinates are related by differentiable functions, a property with wide applications in mathematical physics and differential geometry.
- digital subscriber loop — Digital Subscriber Line
- electronic file cabinet — a device, controlled by software, for the storage and retrieval of information
- fish in troubled waters — any of various cold-blooded, aquatic vertebrates, having gills, commonly fins, and typically an elongated body covered with scales.
- for whom the bell tolls — a novel (1940) by Ernest Hemingway.
- general-obligation bond — a bond issued by a state or city and backed by general tax revenue and the issuer's credit.
- get/build your hopes up — If you tell someone not to get their hopes up, or not to build their hopes up, you are warning them that they should not become too confident of progress or success.
- give (or get) a tumble — to give (or get) some favorable or affectionate notice, attention, etc.
- hollerithabetical order — (algorithm) Sorted into the order a standard Hollerith card sorting machine produces, with special characters interleaved within the alphabet.
- horsehair-blight fungus — a fungal parasite, Marasmius equicrinis, that causes a disease of certain tropical plants, especially tea.
- hypobetalipoproteinemia — (pathology) A low level of betalipoprotein (low-density lipoprotein) in the bloodstream.
- identification bracelet — a bracelet, usually of metal links, having an identification plate for the name of the wearer.
- initial public offering — An initial public offering is the first offering of stock when a company goes public.
- invertible counterpoint — counterpoint in which the voices, while retaining their original form, may be interchanged above or below one another in any order.
- largemouth (black) bass — a black bass (Micropterus salmoides) found in warm, sluggish waters
- lesser peach tree borer — the larva of a clearwing moth, Synanthedon pictipes, distributed throughout the eastern U.S. and Canada but most prevalent in the South, that burrows into the injured trunks and branches of stone fruit trees.
- living on borrowed time — living an unexpected extension of life
- lock, stock, and barrel — a device for securing a door, gate, lid, drawer, or the like in position when closed, consisting of a bolt or system of bolts propelled and withdrawn by a mechanism operated by a key, dial, etc.
- look on the bright side — consider positive aspects
- martha washington table — a sewing table of the 18th century having an oval top that can be lifted and a central compartment of drawers with semicircular bins at each end.
- nonverbal communication — gesture and facial expression
- north ossetian republic — a constituent republic of S Russia, on the N slopes of the central Caucasus Mountains. Capital: Vladikavkaz. Pop: 709 900 (2002). Area: about 8000 sq km (3088 sq miles)
- object relations theory — a form of psychoanalytic theory postulating that people relate to others in order to develop themselves
- off the back of a lorry — If someone says that something has fallen off the back of a lorry, or that they got something off the back of a lorry, they mean that they bought something that they knew was stolen.
- oil-immersion objective — immersion objective.
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