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21-letter words containing o, d, u, r

  • dead from the neck up — stupid or unintelligent
  • delusions of grandeur — If someone has delusions of grandeur, they think and behave as if they are much more important or powerful than they really are.
  • deoxyribonucleic acid — DNA
  • department of justice — the department of the U.S. federal government charged with the responsibility for the enforcement of federal laws. Abbreviation: DOJ.
  • dew-point temperature — the temperature to which air must be cooled, at a given pressure and water-vapor content, for it to reach saturation; the temperature at which dew begins to form.
  • differential equation — an equation involving differentials or derivatives.
  • differential quotient — derivative (def 6).
  • differential-quotient — something that has been derived.
  • discretionary account — an account in which the stockbroker is allowed complete control over the purchase and sale of securities on the customer's behalf.
  • discriminant function — a linear function of measurements of different properties of an object or event that is used to assign the object or event to one population or another (discriminant analysis)
  • disruptive technology — A disruptive technology is a new technology, such as computers and the Internet, which has a rapid and major effect on technologies that existed before.
  • distributed processes — (DP) The first concurrent language based on remote procedure calls.
  • distribution function — (of any random variable) the function that assigns to each number the probability that the random variable takes a value less than or equal to the given number.
  • distributive property — Mathematics. the property that terms in an expression may be expanded in a particular way to form an equivalent expression.
  • do/did you hear (me)? — If you say 'Do you hear?' or 'Did you hear me?' to someone, you are telling them in an angry or forceful way to pay attention to what you are saying.
  • double predestination — the doctrine that God has foreordained both those who will be saved and those who will be damned.
  • double spanish burton — a tackle having one standing block and two running blocks, giving a mechanical advantage of five, neglecting friction.
  • draft once reuse many — (jargon)   (DORUM) Reusing parts of a document to produce parts of an entirely new document. The term normally refers to text documents but the practise is equally common in programming.
  • dumfries and galloway — a region in S Scotland. 2460 sq. mi. (6371 sq. km).
  • dusky seaside sparrow — a species of sparrow, Ammospiza maritima, existing in two subspecies, one (Cape Sable seaside sparrow) having dark olive-drab plumage with a lighter breast and underbelly, and the other (dusky seaside sparrow) having bold black and white markings on the breast and underbelly: the dusky seaside sparrow is almost extinct.
  • dutch reformed church — of or relating to a Protestant denomination (Dutch Reformed Church) founded by Dutch settlers in New York in 1628 and renamed the Reformed Church in America in 1867.
  • eccles-jordan circuit — flip-flop
  • emitter coupled logic — (ECL) (Or "Current Mode Logic") A technology for building logic gates where the emitter of a transistor is used as the output rather than its collector. ECL has a propagation time of 0.5 - 2 ns (faster than TTL) and a power dissipation 3 - 10 times higher than TTL.
  • endoplasmic reticulum — an extensive intracellular membrane system whose functions include synthesis and transport of lipids and, in regions where ribosomes are attached, of proteins
  • enharmonic modulation — a change of key achieved by regarding a note in one key as an equivalent note in another. Thus E flat in the key of A flat could be regarded as D sharp in the key of B major
  • environmental studies — a university course studying the environment and related issues
  • epidermolysis bullosa — type of genetic skin disorder
  • faculty board meeting — a meeting of the governing body of a faculty
  • ferric sodium oxalate — an emerald-green, crystalline, extremely water-soluble salt, used in photography and blueprinting.
  • first-round financing — First round financing is the first time a new company raises money from investors.
  • fluorophosphoric acid — any of three acids containing fluorine and phosphorus, HPF 6 , HPO 2 F 2 , or H 2 PO 3 F.
  • foreground processing — a type of processing that supports interaction between interactive and batch operations
  • four-footed butterfly — any of several butterflies of the family Nymphalidae, including the fritillaries, mourning cloaks, anglewings, and commas, characterized by reduced, nonfunctional forelegs.
  • fraudulent conversion — conversion committed with the intent to defraud
  • gamma hydroxybutyrate — a substance that occurs naturally in the brain, used medically as a sedative but also as a recreational drug and alleged aphrodisiac: known as 'liquid ecstasy' when mixed with alcohol
  • gaussian distribution — normal distribution
  • get your just deserts — If you say that someone got their just deserts, you mean that they deserved the unpleasant things that happened to them, because they did something bad.
  • gird (up) one's loins — to get ready to do something difficult or strenuous
  • give sb the runaround — If someone gives you the runaround, they deliberately do not give you all the information or help that you want, and send you to another person or place to get it.
  • gold bullion standard — a gold standard in which gold is not coined but may be purchased at a fixed price for foreign exchange.
  • goldbach's conjecture — the conjecture that every even number greater than two is the sum of two prime numbers
  • greek orthodox church — the branch of the Orthodox Church constituting the national church of Greece.
  • ground-effect machine — ACV (def 2).
  • higher-order function — (HOF) A function that can take one or more functions as argument and/or return a function as its value. E.g. map in (map f l) which returns the list of results of applying function f to each of the elements of list l. See also curried function.
  • hydraulic accumulator — an apparatus in which gas, usually air, is used as a cushion or shock absorber in a hydraulic system.
  • illinois bundleflower — a warm-season perennial, Desmanthus illinoensis, having small brown legumes and fernlike leaves, native to North American prairies, glades, and pastures.
  • in (or out of) order — in (or not in) proper sequence or position
  • in a state of undress — If someone is in a state of undress, they do not have all their clothes on.
  • in good circumstances — (of a person) in a good financial situation
  • indigenous australian — another name for Aboriginal and Torres Strait Islander
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