18-letter words containing b, u, n, t, a
- circular breathing — a technique for sustaining a phrase on a wind instrument, using the cheeks to force air out of the mouth while breathing in through the nose
- combination square — an adjustable device for carpenters, used as a try square, miter square, level, etc.
- combustion chamber — an enclosed space in which combustion takes place, such as the space above the piston in the cylinder head of an internal-combustion engine or the chambers in a gas turbine or rocket engine in which fuel and oxidant burn
- combustion furnace — a furnace used in the laboratory to carry out elemental analysis of organic compounds
- connected subgraph — (mathematics) A connected graph consisting of a subset of the nodes and edges of some other graph.
- cumberland plateau — division of the W Appalachians, extending from S W.Va. to N Ala.
- cumbrian mountains — a mountain range in NW England, in Cumbria. Highest peak: Scafell Pike, 977 m (3206 ft)
- de bruijn notation — (language) A variation of lambda notation for specifying functions using numbers instead of names to refer to formal parameters. A reference to a formal parameter is a number which gives the number of lambdas (written as \ here) between the reference and the lambda which binds the parameter. E.g. the function \ f . \ x . f x would be written \ . \ . 1 0. The 0 refers to the innermost lambda, the 1 to the next etc. The chief advantage of this notation is that it avoids the possibility of name capture and removes the need for alpha conversion.
- devil's paintbrush — a perennial European hawkweed (Hieracium aurantiacum) with leafless flower stalks bearing a cluster of orange-red heads: now a common weed in N U.S. and Canada
- diabetes insipidus — a disorder of the pituitary gland causing excessive thirst and excretion of large quantities of dilute urine
- diamondback turtle — any edible North American terrapin of the genus Malaclemys, esp M. terrapin, occurring in brackish and tidal waters and having diamond-shaped markings on the shell: family Emydidae
- distinguishability — to mark off as different (often followed by from or by): He was distinguished from the other boys by his height.
- distribution class — form class
- distribution ratio — the ratio of concentrations of a solute distributed between two immiscible solvents in contact with each other, as iodine in water and chloroform
- double achievement — a representation of the arms of a husband beside those of his wife such that a difference of rank between them is shown.
- engelbart, douglas — Douglas Engelbart
- epstein-barr virus — a virus belonging to the herpes family that causes infectious mononucleosis; it is also implicated in the development of Burkitt's lymphoma and Hodgkin's disease
- executable content — (operating system) Executable programs sent by one computer to another via a network. For example a Java applet is executable content. Usage: rare.
- fibrocartilaginous — a type of cartilage having a large number of fibers.
- flash butt welding — a method of welding metal edge-to-edge with a powerful electric flash followed by the application of pressure.
- gamma distribution — a continuous two-parameter distribution from which the chi-square and exponential distributions are derived, written Gamma (α. β), where α and β are greater than zero, and defined in terms of the gamma function
- handlebar mustache — A handlebar mustache is a long thick mustache with curled ends.
- have a thing about — If you have a thing about someone or something, you have very strong feelings about them.
- have money to burn — to have more money than one needs, so that some can be spent foolishly
- heat of combustion — the heat evolved when one mole of a substance is burnt in oxygen at constant volume
- honourable mention — If something that you do in a competition is given an honourable mention, it receives special praise from the judges although it does not actually win a prize.
- ifs, ands, or buts — a supposition; uncertain possibility: The future is full of ifs.
- incommensurability — not commensurable; having no common basis, measure, or standard of comparison.
- incremental backup — (operating system) A kind of backup that copies all files which have changed since the date of the previous backup. The first backup of a file system should include all files - a "full backup". Call this level 0. The next backup could also be a full level 0 backup but it is usually much quicker to do a level 1 backup which will include only those files which have changed since the level 0 backup. Together the level 0 and level 1 backups will include the latest version of every file. Level 1 backups can be made until, say, the backup tape is nearly full, after which we can switch to level 2. Each level includes those files which have changed since the last backup at a lower level. The more levels you use, the longer it will take to restore the latest version of a file (or all files) if you don't know when it was last modified. Compare differential backup.
- indecent behaviour — the offence of committing indecent acts
- individual liberty — the liberty of an individual to exercise freely those rights generally accepted as being outside of governmental control.
- indolebutyric acid — a white or yellowish, crystalline, water-insoluble powder, C 12 H 13 O 2 N, a plant hormone similar to indoleacetic acid and used for the same purposes.
- information bureau — an office where you can go to get information
- informatory double — a double intended to inform one's partner that one has a strong hand and to urge a bid regardless of the strength of his or her hand.
- input/output table — a table of all the inputs and outputs of the industries of an economy
- insurable interest — a financial or other interest in the life or property covered by an insurance contract, without which the contract cannot be enforced
- johannes gutenberg — Johannes [yoh-hahn-uh s] /yoʊˈhɑn əs/ (Show IPA), (Johann Gensfleisch) c1400–68, German printer: credited with invention of printing from movable type.
- kentucky bluegrass — a grass, Poa pratensis, of the Mississippi valley, used for pasturage and lawns.
- last but not least — lastly
- lingual titubation — stuttering or stammering
- lonely hearts club — a club for people who are trying to find a lover or a friend
- malpighian tubules — one of a group of long, slender excretory tubules at the anterior end of the hindgut in insects and other terrestrial arthropods.
- manufacturing base — the manufacturing industries of an area or a country considered as a unit and a constituent part of the economy
- mountain cranberry — cowberry
- multicast backbone — (MBONE) A virtual network on top of the Internet which supports routing of IP multicast packets, intended for multimedia transmission. MBONE gives public access desktop video communications. The quality is poor with only 3-5 frames per second instead of the 30 frames per second of commercial television. Its advantage is that it avoids all telecommunications costs normally associated with teleconferencing. An interesting innovation is the use of MBONE for audio communications and an electronic "whiteboard" where the computer screen becomes a shared workspace where two physically remote parties can draw on and edit shared documents in real-time.
- natural childbirth — childbirth involving little or no use of drugs or anesthesia and usually involving a program in which the mother is psychologically and physically prepared for the birth process.
- nebular hypothesis — the theory that the solar system evolved from a mass of nebular matter: prominent in the 19th century following its precise formulation by Laplace.
- neural tube defect — any of a group of congenital abnormalities involving the brain and spinal cord, including spina bifida and meningocele, caused by failure of the neural tube to close properly during embryonic development.
- non-accountability — the state of being accountable, liable, or answerable.
- non-understandable — capable of being understood; comprehensible.