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19-letter words containing e, n, d, o, r, s

  • post-and-rail fence — a fence constructed of upright wooden posts with horizontal timber slotted through it
  • post-polio syndrome — Pathology. muscle weakness occurring several decades after recovery from a polio infection, caused by fatiguing of collateral nerve axons developed during physical rehabilitation.
  • 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.
  • 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-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
  • pseudo-professional — following an occupation as a means of livelihood or for gain: a professional builder.
  • 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.
  • psychoendocrinology — the study of the relationship between the endocrine system and various symptoms or types of mental illness.
  • ralph waldo emerson — Ralph Waldo [wawl-doh,, wol-] /ˈwɔl doʊ,, ˈwɒl-/ (Show IPA), 1803–82, U.S. essayist and poet.
  • 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 secretary — an officer charged with keeping the minutes of meetings and responsible for the records.
  • 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.
  • 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
  • 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.
  • rhodesian ridgeback — a large short-haired breed of dog characterized by a ridge of hair growing along the back in the opposite direction to the rest of the coat. It was originally a hunting dog from South Africa
  • royal correspondent — a journalist who reports on matters relating to royalty
  • 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
  • san bernardino pass — a pass over the Lepontine Alps in SE Switzerland. Highest point: 2062 m (6766 ft)
  • san fernando valley — valley in SW Calif., partly in NW Los Angeles: c. 260 sq mi (673 sq km)
  • 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.
  • 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.
  • sea floor spreading — a process in which new ocean floor is created as molten material from the earth's mantle rises in margins between plates or ridges and spreads out.
  • sea-floor spreading — a process in which new ocean floor is created as molten material from the earth's mantle rises in margins between plates or ridges and spreads out.
  • 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 processes — the conscious mental activity and logical thinking controlled by the ego and influenced by environmental demands.
  • 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.
  • self-administration — the management of any office, business, or organization; direction.
  • self-discrimination — an act or instance of discriminating, or of making a distinction.
  • sell down the river — a natural stream of water of fairly large size flowing in a definite course or channel or series of diverging and converging channels.
  • semiconductor laser — a laser in which a semiconductor is the light-emitting source, used in many medical procedures.
  • senatorial district — one of a fixed number of districts into which a state of the U.S. is divided, each electing one member to the state senate.
  • sensory deprivation — the experimental or natural reduction of environmental stimuli, as by physical isolation or loss of eyesight, often leading to cognitive, perceptual, or behavioral changes, as disorientation, delusions, or panic.
  • sexual reproduction — reproduction involving the union of gametes.
  • sheet flood erosion — Geology. erosion by sheets of running water, rather than by streams.
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