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

  • percussion drilling — Percussion drilling is a drilling method which involves lifting and dropping heavy tools to break rock, and uses steel casing tubes to stop the borehole from collapsing.
  • periodontal disease — any of various mixed bacterial infections that affect the soft tissues and bones supporting the teeth.
  • peritoneal dialysis — a form of dialysis in which the peritoneum is used as an autogenous semipermeable membrane
  • peroxysulfuric acid — persulfuric acid (def 1).
  • persistent offender — a person who repeatedly breaks the law
  • photodisintegration — the disintegration of a nucleus, induced by its absorption of a photon.
  • physical addressing — (networking)   The low level addressing scheme used on Ethernet. The 48-bit destination Ethernet address in a packet is compared with the receiving node's Ethernet address. Compare IP address.
  • physically impaired — with reduced or weakened physical capacity
  • piece de resistance — the principal dish of a meal.
  • plastic deformation — In plastic deformation a material changes shape when a stress is applied to it and does not go back to its original state when the stress is removed.
  • police headquarters — building where police are stationed
  • 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.
  • potassium hydroxide — a white, deliquescent, water-soluble solid, KOH, usually in the form of lumps, sticks, or pellets, that upon solution in water generates heat: used chiefly in the manufacture of soap, as a laboratory reagent, and as a caustic.
  • pre-order traversal — traversal
  • presidente prudente — a city in central Brazil.
  • 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.
  • professional advice — advice given by someone trained in a particular and relevant profession or job
  • progressive judaism — Reform Judaism.
  • 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-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.
  • psychic determinism — the theory that all aspects of a person's psychological makeup arise from specific causes or forces, as previous experiences or instinctual drives, which may be conscious or unconscious.
  • psychoendocrinology — the study of the relationship between the endocrine system and various symptoms or types of mental illness.
  • 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.
  • radius of curvature — the absolute value of the reciprocal of the curvature at a point on a curve.
  • 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.
  • 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.
  • redress the balance — to make a fair adjustment; see that justice is done
  • refreshable display — braille display
  • registered disabled — on a local authority register under the Chronically Sick and Disabled Persons Act 1970
  • 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
  • removable hard disk — (storage)   A type of magnetic disk, or possibly magneto-optical disk which is not permanently attached to the disk drive (not a fixed disk) but which can be taken out and replaced, allowing many disks to be used in the same drive. The term "removable disk" would seem to be applicable to floppy disks but is generally reserved for hard disks in suitable cartridges such as those made by Syquest, Iomega and others. Removable disk packs were common on minicomputers such as the PDP-11 in use in the 1970s except that the drives were the size of washing machines and the disk packs as big as car wheels. Removable disks became popular on microcomputers in the 1990s as a cheap way of expanding disk space, transporting large amounts of data between computers and storing backups. Large, cheap fixed hard disks and USB memory sticks have made removable disks less attractive.
  • reserved occupation — in time of war, an occupation from which one will not be called up for military service
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