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19-letter words containing p, r, e, d, o, c

  • 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
  • pretty good privacy — (tool, cryptography)   (PGP) A high security RSA public-key encryption application for MS-DOS, Unix, VAX/VMS, and other computers. It was written by Philip R. Zimmermann <[email protected]> of Phil's Pretty Good(tm) Software and later augmented by a cast of thousands, especially including Hal Finney, Branko Lankester, and Peter Gutmann. PGP was distributed as "guerrilla freeware". The authors don't mind if it is distributed widely, just don't ask Philip Zimmermann to send you a copy. PGP uses a public-key encryption algorithm claimed by US patent #4,405,829. The exclusive rights to this patent are held by a California company called Public Key Partners, and you may be infringing this patent if you use PGP in the USA. This is explained in the PGP User's Guide, Volume II. PGP allows people to exchange files or messages with privacy and authentication. Privacy and authentication are provided without managing the keys associated with conventional cryptographic software. No secure channels are needed to exchange keys between users, which makes PGP much easier to use. This is because PGP is based on public-key cryptography. PGP encrypts data using the International Data Encryption Algorithm with a random session key, and uses the RSA algorithm to encrypt the session key. In December 1994 Philip Zimmermann faced prosecution for "exporting" PGP out of the United States but in January 1996 the US Goverment dropped the case. A US law prohibits the export of encryption software out of the country. Zimmermann did not do this, but the US government hoped to establish the proposition that posting an encryption program on a BBS or on the Internet constitutes exporting it - in effect, stretching export control into domestic censorship. If the government had won it would have had a chilling effect on the free flow of information on the global network, as well as on everyone's privacy from government snooping.
  • pride-of-california — a shrubby plant, Lathyrus splendens, of the legume family, native to southern California, having showy clusters of pale rose-pink, violet, or magenta flowers and large, smooth, beaked pods.
  • 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.
  • proctosigmoidoscope — sigmoidoscope.
  • professional advice — advice given by someone trained in a particular and relevant profession or job
  • promotions director — someone in charge of encouraging the sale of (a product) by advertising or securing financial support
  • 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-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.
  • psychoendocrinology — the study of the relationship between the endocrine system and various symptoms or types of mental illness.
  • radiopharmaceutical — any of a number of radioactive drugs used diagnostically or therapeutically.
  • rancho palos verdes — a town in SW California.
  • reactive depression — depression occurring in response to some situational stress, as loss of one's job.
  • recording equipment — devices used for sound reproduction
  • reduction potential — (in a galvanic cell) the potential of the electrode at which reduction occurs.
  • 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
  • royal correspondent — a journalist who reports on matters relating to royalty
  • santa rosa de copan — a town in W Honduras: site of extensive Mayan ruins.
  • scale down (or up) — to reduce (or increase), often according to a fixed ratio or proportion
  • secondary picketing — the picketing by strikers of a place of work that supplies goods to or distributes goods from their employer
  • secondary processes — the conscious mental activity and logical thinking controlled by the ego and influenced by environmental demands.
  • sexual reproduction — reproduction involving the union of gametes.
  • simple carbohydrate — a carbohydrate, as glucose, that consists of a single monosaccharide unit.
  • simple closed curve — a curve that is closed and that has no loops or points missing; a curve for which there exists a homeomorphism mapping it to a circle.
  • sodium hypochlorite — a pale-green, crystalline compound, NaOCl, unstable in air, soluble in cold water, decomposes in hot water: used as a bleaching agent for paper and textiles, in water purification, in household use, and as a fungicide.
  • stationery cupboard — a cupboard where things like paper, pens and paper clips are kept
  • telephone directory — a book, directory, or the like, usually containing an alphabetical list of telephone subscribers in a city or other area, together with their addresses and telephone numbers.
  • theatrical producer — a person who is responsible for all aspects of a theatrical production
  • to the prejudice of — to the detriment of
  • tropical depression — an atmospheric low-pressure system originating in the tropics, specifically, a tropical cyclone in which the maximum sustained wind speed is 38 miles per hour (62 kilometers per hour) or less.
  • under police escort — If you go somewhere or are taken somewhere under police escort, you go there accompanied by a police escort.
  • video tape recorder — a device for recording television programs on magnetic tape for delayed transmission or for storage.
  • war of independence — American Revolution.
  • zero and add packed — (language)   (ZAP) An IBM 360/370 assembly language instruction used when performing packed arithmatic to initialise an accumulator.
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