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16-letter words containing p, o, t, c, h

  • 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)
  • 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.
  • perchloromethane — carbon tetrachloride.
  • 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.
  • pharmacogenetics — the branch of pharmacology that examines the relation of genetic factors to variations in response to drugs.
  • pharmacokinetics — the branch of pharmacology that studies the fate of pharmacological substances in the body, as their absorption, distribution, metabolism, and elimination.
  • 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.
  • 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.
  • photoluminescent — luminescence induced by the absorption of infrared radiation, visible light, or ultraviolet radiation.
  • photoperiodicity — the response, as affecting growth or reproduction, of an organism to the length of exposure to light in a 24-hour period.
  • photozincography — a type of photoengraving using a sensitized zinc plate.
  • phylogenetically — the development or evolution of a particular group of organisms.
  • phytosuccivorous — feeding on sap, as certain sucking insects.
  • pinot chardonnay — Chardonnay.
  • pitch inspection — in inclement weather, a pre-match inspection of the playing surface in order to determine whether it is in good enough condition for the match to go ahead
  • pitch-cone angle — (in a bevel gear) the apex angle of the truncated cone (pitch cone) which forms the reference surface on which the teeth of a bevel gear are cut
  • pithecanthropine — of, belonging to, or resembling a former genus (Pithecanthropus, now classified as Homo erectus) of extinct early humans, who lived in Java, China, Europe, and Africa
  • pithecanthropoid — of, relating to, or resembling the former genus Pithecanthropus or one of its members.
  • plainclothes man — a detective or police officer who wears civilian clothes while on duty
  • plymouth company — a company, formed in England in 1606 to establish colonies in America and that founded a colony in Maine in 1607.
  • pneumatic trough — a trough filled with liquid, especially water, for collecting gases in bell jars or the like by displacement.
  • poitou-charentes — a region of W central France, on the Bay of Biscay: mainly low-lying
  • pork scratchings — small pieces of crisply cooked pork crackling, eaten cold as an appetizer with drinks
  • postencephalitic — inflammation of the substance of the brain.
  • pragmatic theory — the theory of truth that the truth of a statement consists in its practical consequences, especially in its agreement with subsequent experience.
  • process theology — a form of theology that emphasizes the close relation of human beings, nature, and God.
  • prognostic chart — a chart showing the predicted state of the atmosphere for a given time in the future.
  • projection booth — a soundproof compartment in a theater where a motion-picture projector is housed and from which the picture is projected on the screen.
  • prophylactically — defending or protecting from disease or infection, as a drug.
  • propylthiouracil — a white crystalline compound, C 7 H 1 0 N 2 OS, that interferes with the synthesis of thyroid hormone by the thyroid gland: used in the treatment of hyperthyroidism.
  • prospect heights — a town in N Illinois.
  • prosthetic group — the nonprotein acid constituent of a conjugate protein, as the heme group of hemoglobin.
  • protestant ethic — work ethic.
  • pseudohistorical — of, pertaining to, treating, or characteristic of history or past events: historical records; historical research.
  • psychoanalytical — a systematic structure of theories concerning the relation of conscious and unconscious psychological processes.
  • psychogeriatrics — the psychology of old age.
  • psychotechnology — the body of knowledge, theories, and techniques developed for understanding and influencing individual, group, and societal behavior in specified situations.
  • put to the torch — to set fire to; burn down
  • rape of the lock — a mock-epic poem (1712) by Alexander Pope.
  • re-chromatograph — to separate and analyse (a mixture of liquids or gases) by means of chromatography a second or further time
  • schneider trophy — a trophy for air racing between seaplanes of any nation, first presented by Jacques Schneider (1879–1928) in 1913; won outright by Britain in 1931
  • school inspector — an official whose job is to inspect schools and to report on their quality and conditions
  • sharia-compliant — (of a product or service) produced or offered in accordance with the doctrines of the sharia
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