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

  • over someone's head — the upper part of the body in humans, joined to the trunk by the neck, containing the brain, eyes, ears, nose, and mouth.
  • overplay one's hand — If you say that someone is overplaying something such as a problem, you mean that they are making it seem more important than it really is.
  • palisade parenchyma — the upper layer of ground tissue in a leaf, consisting of elongated cells beneath and perpendicular to the upper epidermis and constituting the primary area of photosynthesis.
  • parkinson's disease — a common neurologic disease believed to be caused by deterioration of the brain cells that produce dopamine, occurring primarily after the age of 60, characterized by tremors, especially of the fingers and hands, muscle rigidity, shuffling gait, slow speech, and a masklike facial expression.
  • particle dispersoid — A particle dispersoid is a suspension of solid particles in a gas.
  • pedestrian crossing — place to cross road
  • pedestrian precinct — A pedestrian precinct is a street or part of a town where vehicles are not allowed.
  • 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).
  • 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
  • polyphosphoric acid — any one of a series of oxyacids of phosphorus with the general formula Hn+2PnO3n+1. The first member is pyrophosphoric acid (n = 2) and the series includes the highly polymeric metaphosphoric acid. The higher acids exist in an equilibrium mixture
  • post-and-rail fence — a fence constructed of upright wooden posts with horizontal timber slotted through it
  • 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
  • professional advice — advice given by someone trained in a particular and relevant profession or job
  • profitability study — a study of how much profit a company, organization, etc, makes or how profitable it is
  • progressive judaism — Reform Judaism.
  • 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-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.
  • pyrophosphoric acid — a crystalline, water-soluble powder, H 4 P 2 O 7 , formed by the union of one molecule of phosphorus pentoxide with two molecules of water.
  • 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.
  • 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
  • residence insurance — Residence insurance is insurance coverage against damage to a building in which you live.
  • 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.
  • resplendent quetzal — See under quetzal (def 1).
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