19-letter words containing d, r, u

preproduction model — a prototype of a product before the product goes into full-scale production
preproduction trial — a trial to test a prototype of a product before the product goes into full-scale production
presidente prudente — a city in central Brazil.
pride and prejudice — a novel (1813) by Jane Austen (written 1796–97).
printing discussion — [XEROX PARC] A protracted, low-level, time-consuming, generally pointless discussion of something only peripherally interesting to all.
priority scheduling — (operating system) Processes scheduling in which the scheduler selects tasks to run based on their priority as opposed to, say, a simple round-robin. Priorities may be static or dynamic. Static priorities are assigned at the time of creation, while dynamic priorities are based on the processes' behaviour while in the system. For example, the scheduler may favour I/O-intensive tasks so that expensive requests can be issued as early as possible. A danger of priority scheduling is starvation, in which processes with lower priorities are not given the opportunity to run. In order to avoid starvation, in preemptive scheduling, the priority of a process is gradually reduced while it is running. Eventually, the priority of the running process will no longer be the highest, and the next process will start running. This method is called aging.
procedural language — (language) Any programming language in which the programmer specifies an explicit sequences of steps to follow to produce a result (an algorithm). The term should not be confused with "imperative language" - a language that specifies explicit manipulation of state. An example (non-imperative) procedural language is LOGO, which specifies sequences of steps to perform but does not have an internal state. Other procedural languages include Basic, Pascal, C, and Modula-2. Both procedural and imperative languages are in contrast to declarative languages, in which the programmer specifies neither explicit steps nor explicit state manipulation.
production platform — offshore power station
profitability study — a study of how much profit a company, organization, etc, makes or how profitable it is
progressive judaism — Reform Judaism.
proto-indo-european — the unattested prehistoric parent language of the Indo-European languages; Indo-European.
pseudo-aristocratic — of or relating to government by an aristocracy.
pseudo-biographical — of or relating to a person's life: He's gathering biographical data for his book on Milton.
pseudo-conservative — disposed to preserve existing conditions, institutions, etc., or to restore traditional ones, and to limit change.
pseudo-experimental — pertaining to, derived from, or founded on experiment: an experimental science.
pseudo-hieroglyphic — noting or pertaining to a script dating from the second millennium b.c. that appears to be syllabic and to represent the Phoenician language and that is inscribed on objects found at Byblos.
pseudo-intransitive — denoting an occurrence of a normally transitive verb in which a direct object is not explicitly stated or forms the subject of the sentence, as in Margaret is cooking or these apples cook well
pseudo-professional — following an occupation as a means of livelihood or for gain: a professional builder.
pseudohermaphrodite — an individual having internal reproductive organs of one sex and external sexual characteristics resembling those of the other sex or being ambiguous in nature. Compare hermaphrodite (def 1).
pseudorandom number — (programming) One of a sequence of numbers generated by some algorithm so as to have an even distribution over some range of values and minimal correlation between successive values. Pseudorandom numbers are used in simulation and encryption. They are pseudorandom not random because the sequence eventually repeats exactly and is entirely determined by the initial conditions. One of the simplest algorithms is x[i+1] = (a * x[i] + c) mod m but this repeats after at most m numbers and successive numbers are closely related. Better algorithms generally use more previous numbers to calculate the next number.
put the skids under — a plank, bar, log, or the like, especially one of a pair, on which something heavy may be slid or rolled along.
radioactive fallout — the settling to the ground of airborne particles ejected into the atmosphere from the earth by explosions, eruptions, forest fires, etc., especially such settling from nuclear explosions (radioactive fallout) Compare rainout.
radiopharmaceutical — any of a number of radioactive drugs used diagnostically or therapeutically.
radius of curvature — the absolute value of the reciprocal of the curvature at a point on a curve.
rapture of the deep — nitrogen narcosis.
recording equipment — devices used for sound reproduction
red-shouldered hawk — a North American hawk, Buteo lineatus, having rufous shoulders.
redbrick university — any new or little-known university, especially one built since World War II to educate students in industrial regions, emphasizing technical subjects rather than the classics, and often partially supported by government funds.
reduction potential — (in a galvanic cell) the potential of the electrode at which reduction occurs.
regular icosahedron — an icosahedron in which each of the faces is an equilateral triangle
reindustrialization — the revitalization of an industry or industrial society through government aid and tax incentives, modernization of factories and machinery, etc.
religious education — religion as school subject
republic of ireland — John, 1838–1918, U.S. Roman Catholic clergyman and social reformer, born in Ireland: archbishop of St. Paul, Minn., 1888–1918.
reserved occupation — in time of war, an occupation from which one will not be called up for military service
residence insurance — Residence insurance is insurance coverage against damage to a building in which you live.
resplendent quetzal — See under quetzal (def 1).
restricted currency — a non-convertible currency
reticulated tracery — tracery consisting in large part of a netlike arrangement of repeated geometrical figures.
reticuloendothelial — pertaining to, resembling, or involving cells of the reticuloendothelial system.
revenue expenditure — the amount of money spent by a business or organisation on general operating costs such as rent, insurance, heating, maintenance etc
ride roughshod over — shod with horseshoes having projecting nails or points.
right-eyed flounder — any of several flatfishes of the family Pleuronectidae, having both eyes on the right side of the head.
run into the ground — to do too long or too often; overdo
run-length encoding — A kind of compression algorithm which replaces sequences ("runs") of consecutive repeated characters (or other units of data) with a single character and the length of the run. This can either be applied to all input characters, including runs of length one, or a special character can be used to introduce a run-length encoded group. The longer and more frequent the runs are, the greater the compression that will be achieved. This technique is particularly useful for encoding black and white images where the data units would be single bit pixels.
rural free delivery — former name for rural delivery service. Abbreviation: R.F.D.
saddharma-pundarika — a Mahayana sutra, forming with its references to Amida and the Bodhisattvas the basis for the doctrine that there is something of Buddha in everyone, so that salvation is universally available: a central text of Mahayana Buddhism.
san juan de la cruz — San Juan de la [sahn hwahn de lah] /sɑn ʰwɑn dɛ lɑ/ (Show IPA), John of the Cross, Saint.
scale down (or up) — to reduce (or increase), often according to a fixed ratio or proportion
screen actors guild — a labor union for motion-picture performers, founded in 1933. Abbreviation: SAG.
secondary education — education at high-school level

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