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16-letter words containing p, o, c

  • partial fraction — one of the fractions into which a given fraction can be resolved, the sum of such simpler fractions being equal to the given fraction: Partial fractions of 5/(x2−x) are 5/(x−1) and −5/x.
  • partial function — A function which is not defined for all arguments of its input type. E.g. f(x) = 1/x if x /= 0. The opposite of a total function. In denotational semantics, a partial function f : D -> C may be represented as a total function ft : D' -> lift(C) where D' is a superset of D and ft x = f x if x in D ft x = bottom otherwise where lift(C) = C U bottom. Bottom (LaTeX \perp) denotes "undefined".
  • pascal's limacon — limaçon.
  • pascal's theorem — the theorem that the lines joining adjacent vertices of a hexagon intersect the same straight line if alternate vertices lie on two intersecting straight lines.
  • passport control — identity check at airport, etc.
  • patched-together — makeshift; roughly made from disparate elements
  • paterson's curse — a purple-flowered noxious plant, Echium plantagineum, a close relative of viper's bugloss, naturalized in Australia and NZ where its harmfulness to livestock has prompted attempts to limit its spread
  • pavillon chinois — crescent (def 6).
  • peace conference — a conference where representatives of warring governments or countries sign a treaty to end conflict
  • peach tree borer — the larva of any of several clearwing moths, as Sanninoidea exitiosa, that bore into the wood of the peach and other drupaceous trees.
  • peano arithmetic — (mathematics)   Giuseppe Peano's system for representing natural numbers inductively using only two symbols, "0" (zero) and "S" (successor). This system could be expressed as a recursive data type with the following Haskell definition: data Peano = Zero | Succ Peano The number three, usually written "SSS0", would be Succ (Succ (Succ Zero)). Addition of Peano numbers can be expressed as a simple syntactic transformation: plus Zero n = n plus (Succ m) n = Succ (plus m n) (1995-03-28)
  • pectoralis major — the larger of the two large chest muscles that assist in movements of the shoulder and upper arm
  • pectoralis minor — the smaller of the two large chest muscles that assist in movements of the shoulder and upper arm
  • pelagic division — the biogeographic realm or zone that comprises the open seas and oceans, including water of all depths.
  • pelican crossing — place to cross road
  • pentatonic scale — a scale having five tones to an octave, as one having intervals that correspond to the five black keys of a piano octave.
  • people's charter — the principles or movement of a party of political reformers, chiefly workingmen, in England from 1838 to 1848: so called from the document (People's Charter or National Charter) that contained a statement of their principles and demands.
  • people's commune — a usually rural, Communist Chinese social and administrative unit of from 2000 to 4000 families combined for collective farming, fishing, mining, or industrial projects.
  • percentage point — difference: one per cent
  • perchloromethane — carbon tetrachloride.
  • percussion drill — a drill that is operated by percussion
  • peregrine falcon — a globally distributed falcon, Falco peregrinus, much used in falconry because of its swift flight: several subspecies are endangered.
  • perforated ulcer — an ulcer that bursts through the stomach wall and leaks food and gastric juices into the abdominal cavity
  • performance bond — contract bond.
  • performance test — a test requiring little or no use of language, the test materials being designed to elicit manual or behavioral responses rather than verbal ones.
  • periodic decimal — repeating decimal.
  • periodic tenancy — the letting of a dwelling for a repeated short term, as by the week, month, or quarter, with no end date
  • person of colour — a person who is not White
  • personal effects — belongings
  • personality cult — deliberately cultivated adulation of a person, esp a political leader
  • personnel agency — an agency for placing employable persons in jobs; employment agency.
  • peter pan collar — a close-fitting flat or rolled collar with rounded ends that meet in front of a high, round neckline.
  • phagocytic index — the average number of bacteria ingested per phagocyte in an incubated mixture of bacteria, phagocytes, and blood serum: used in determining the opsonic index.
  • phantasmagorical — having a fantastic or deceptive appearance, as something in a dream or created by the imagination.
  • pharmacodynamics — the branch of pharmacology dealing with the course of action, effect, and breakdown of drugs within the body.
  • pharmacogenetics — the branch of pharmacology that examines the relation of genetic factors to variations in response to drugs.
  • pharmacogenomics — the study of human genetic variability in relation to drug action and its application to medical treatment
  • pharmacokinetics — the branch of pharmacology that studies the fate of pharmacological substances in the body, as their absorption, distribution, metabolism, and elimination.
  • phase microscope — a microscope that utilizes the phase differences of light rays transmitted by different portions of an object to create an image in which the details of the object are distinct despite their near-uniformity of refractive index.
  • phenomenological — the study of phenomena.
  • pheochromocytoma — a tumor of the sympathetic nervous system or adrenal medulla, that produces excess norepinephrine and epinephrine and causes hypertension, headaches, nausea, etc.
  • philanthropistic — a person who practices philanthropy.
  • phonocardiograph — an instrument for graphically recording the sound of the heartbeat.
  • phosphorous acid — a colorless, crystalline, water-soluble acid of phosphorus, H 3 PO 3 , from which phosphites are derived.
  • photoautotrophic — any organism that derives its energy for food synthesis from light and is capable of using carbon dioxide as its principal source of carbon.
  • photochronograph — a device formerly used for taking a series of instantaneous photographs of a rapidly moving object.
  • photocoagulation — a surgical technique using an intense beam of light from a laser or a xenon-arc bulb to seal blood vessels or coagulate tissue, used primarily in ophthalmology to repair detached retinas or to treat certain kinds of retinopathy.
  • photocomposition — any method of composition using photography, as composition by means of a photocomposer.
  • photoelectricity — electricity induced by electromagnetic radiation, as in certain processes, as the photoelectric and photovoltaic effects, photoconductivity, and photoionization.
  • photoelectrotype — an electrotype made by photographic means.
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