18-letter words containing u, s, r, d
- decision procedure — a procedure, as an algorithm, for determining in a finite number of steps the validity of any of a certain class of propositions.
- defense calculator — IBM 701
- delmarva peninsula — a peninsula of the northeast US, between Chesapeake Bay and the Atlantic
- descriptive clause — a relative clause that describes or supplements but is not essential in establishing the identity of the antecedent and is usually set off by commas in English. In This year, which has been dry, is bad for crops the clause which has been dry is a nonrestrictive clause.
- desiderius erasmus — Desiderius [des-i-deer-ee-uh s] /ˌdɛs ɪˈdɪər i əs/ (Show IPA), 1466?–1536, Dutch humanist, scholar, theologian, and writer.
- destruct mechanism — a mechanism that causes the destruction of a rocket or missile when activated
- 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
- dia de los muertos — Day of the Dead.
- diaminofluorescein — (organic compound) A fluorescein into which two amino groups have been substituted.
- diatomaceous earth — an unconsolidated form of diatomite
- dietary supplement — a substance taken in addition to what you eat in order to promote health
- digital signatures — digital signature
- discourse analysis — the study of the rules or patterns characterizing units of connected speech or writing longer than a sentence.
- disorderly conduct — any of various petty misdemeanors, generally including nuisances, breaches of the peace, offensive or immoral conduct in public, etc.
- distress frequency — a radio frequency band reserved for emergency signals from aircraft or ships in distress.
- distributed eiffel — ["Distributed Eiffel: A Language for Programming Multi-Granular Distributed Objects on the Clouds Operating System", L. Gunaseelan et al, IEEE Conf Comp Langs, 1992].
- distributed memory — (architecture) The kind of memory in a parallel processor where each processor has fast access to its own local memory and where to access another processor's memory it must send a message via the inter-processor network. Opposite: shared memory.
- distributed system — A collection of (probably heterogeneous) automata whose distribution is transparent to the user so that the system appears as one local machine. This is in contrast to a network, where the user is aware that there are several machines, and their location, storage replication, load balancing and functionality is not transparent. Distributed systems usually use some kind of client-server organisation. Distributed systems are considered by some to be the "next wave" of computing.
- distribution class — form class
- distribution curve — the curve or line of a graph in which cumulative frequencies are plotted as ordinates and values of the variate as abscissas.
- 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
- division of labour — a system of organizing the manufacture of an article in a series of separate specialized operations, each of which is carried out by a different worker or group of workers
- double-edged sword — sth that can be both positive and negative
- double-page spread — two pages treated as one in a publication, with images or text extending across the binding
- drainpipe trousers — trousers with very narrow legs
- driver's education — high-school driving classes
- driving instructor — sb who teaches people to drive
- drug-eluting stent — A drug-eluting stent is a tube placed into a blocked artery that slowly releases a drug to prevent another blockage in the artery.
- duchenne dystrophy — the most common form of muscular dystrophy, usually affecting only boys
- due process of law — the administration of justice in accordance with established rules and principles
- duty-free shopping — the making of duty-free purchases
- dwarf storage unit — (humour) (DSU) An IBM term for a cupboard.
- elementary student — primary school pupil
- engelbart, douglas — Douglas Engelbart
- established church — a Church that is officially recognized as a national institution, esp the Church of England
- euclid's algorithm — (algorithm) (Or "Euclidean Algorithm") An algorithm for finding the greatest common divisor (GCD) of two numbers. It relies on the identity gcd(a, b) = gcd(a-b, b) To find the GCD of two numbers by this algorithm, repeatedly replace the larger by subtracting the smaller from it until the two numbers are equal. E.g. 132, 168 -> 132, 36 -> 96, 36 -> 60, 36 -> 24, 36 -> 24, 12 -> 12, 12 so the GCD of 132 and 168 is 12. This algorithm requires only subtraction and comparison operations but can take a number of steps proportional to the difference between the initial numbers (e.g. gcd(1, 1001) will take 1000 steps).
- fast-food industry — the industry surrounding fast-food restaurants
- federal funds rate — The federal funds rate is the overnight rate between banks.
- first class module — (programming) A module that is a first class data object of the programming language, e.g. a record containing functions. In a functional language, it is standard to have first class programs, so program building blocks can have the same status.
- first duke of york — a member of the royal house of England that ruled from 1461 to 1485.
- fissure of rolando — central sulcus.
- fixed-focus camera — a camera with an unadjustable focal length and with a relatively large depth of field.
- fluorodeoxyglucose — (carbohydrate) A fluorine analog of glucose that is used in positron emission tomography.
- frederick douglass — Frederick, 1817–95, U.S. ex-slave, abolitionist, and orator.
- funding operations — the conversion of government floating stock or short-term debt into holdings of long-term bonds
- 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
- gas-discharge tube — any tube in which an electric discharge takes place through a gas
- gastroduodenostomy — See under gastroenterostomy.
- geodetic surveying — the surveying of the earth's surface, making allowance for its curvature and giving an accurate framework for smaller-scale surveys
- gettysburg address — the notable short speech made by President Lincoln on November 19, 1863, at the dedication of the national cemetery at Gettysburg, Pa.