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19-letter words containing d, e, t, o, r

  • primitive methodist — a member of a Protestant denomination (Primitive Methodist Church) founded in England in 1812 and later established in the U.S., characterized by its adherence to the basic doctrines, principles, and practices taught by John Wesley.
  • 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.
  • proctosigmoidoscope — sigmoidoscope.
  • promotions director — someone in charge of encouraging the sale of (a product) by advertising or securing financial support
  • 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-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-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
  • 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).
  • radiation potential — the potential in volts that must be applied to an atom or molecule to cause it to emit radiation at one of its characteristic frequencies.
  • 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.
  • reactive depression — depression occurring in response to some situational stress, as loss of one's job.
  • recording equipment — devices used for sound reproduction
  • recording secretary — an officer charged with keeping the minutes of meetings and responsible for the records.
  • reduction potential — (in a galvanic cell) the potential of the electrode at which reduction occurs.
  • reference electrode — an electrode of known oxidation potential used in determining the electromotive force of a galvanic cell.
  • reindustrialization — the revitalization of an industry or industrial society through government aid and tax incentives, modernization of factories and machinery, etc.
  • reinforced concrete — concrete containing steel bars, strands, mesh, etc., to absorb tensile and shearing stresses.
  • relational database — an electronic database comprising multiple files of related information, usually stored in tables of rows (records) and columns (fields), and allowing a link to be established between separate files that have a matching field, as a column of invoice numbers, so that the two files can be queried simultaneously by the user.
  • religious education — religion as school subject
  • removable cartridge — a hard disk enclosed in a case that can be removed from the disk drive, having more storage than floppy disks.
  • reserved occupation — in time of war, an occupation from which one will not be called up for military service
  • resonance radiation — radiation emitted by an atom or molecule, having the same frequency as that of an incident particle, as a photon, and usually involving a transition to the lowest energy level of the atom or molecule.
  • reticuloendothelial — pertaining to, resembling, or involving cells of the reticuloendothelial system.
  • right-eyed flounder — any of several flatfishes of the family Pleuronectidae, having both eyes on the right side of the head.
  • rio grande do norte — a state in E Brazil. 20,464 sq. mi. (53,000 sq. km). Capital: Natal.
  • romanian tenderloin — a cut of beef consisting of the diaphragm muscle.
  • royal correspondent — a journalist who reports on matters relating to royalty
  • 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.
  • saber-toothed tiger — any of several extinct members of the cat family Felidae from the Oligocene to Pleistocene Epochs, having greatly elongated, saberlike upper canine teeth.
  • sabre-toothed tiger — any of various extinct Tertiary felines of the genus Smilodon and related genera, with long curved upper canine teeth
  • saddle-billed stork — a large stork, Ephippiorhynchus senegalensis, of West Africa, having a white and black body and a long, red and black bill.
  • samoa standard time — a standard time used in the zone which includes American Samoa, corresponding to the mean solar time of the 165th meridian west of Greenwich, England: it is eleven hours behind Greenwich time
  • sandwich generation — the generation of people still raising their children while having to care for their aging parents.
  • santa rosa de copan — a town in W Honduras: site of extensive Mayan ruins.
  • santiago del estero — a city in N Argentina.
  • screen actors guild — a labor union for motion-picture performers, founded in 1933. Abbreviation: SAG.
  • secondary dentition — the permanent dentition
  • secondary education — education at high-school level
  • secondary infection — an infection resulting from another infection
  • secondary intention — See under intention (def 5b).
  • secondary picketing — the picketing by strikers of a place of work that supplies goods to or distributes goods from their employer
  • secondary qualities — one of the qualities attributed by the mind to an object perceived, such as color, temperature, or taste.
  • secondary structure — the arrangement of a polypeptide into a regular alpha helix, beta structure, or random coil configuration by the formation of intramolecular hydrogen bonds along the length of the chain.
  • secondary-intention — an act or instance of determining mentally upon some action or result.
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