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18-letter words containing c, h, o, p

  • old curiosity shop — a novel (1840–41) by Dickens.
  • ophthalmologically — In an ophthalmological manner.
  • optical brightener — an additive that dyes and brightens fabric or paper
  • orthopedic surgery — corrective operation on bones or joints
  • orthophthalic acid — Chemistry. any of three isomeric acids having the formula C 8 H 6 O 4 , especially the ortho isomer (orthophthalic acid) a colorless, crystalline, slightly water-soluble solid used chiefly in the manufacture of dyes, medicine, and perfume.
  • oscillographically — By means of oscillography.
  • outreach programme — a programme designed to help and encourage disadvantaged members of the community
  • overhead projector — over one's head; aloft; up in the air or sky, especially near the zenith: There was a cloud overhead.
  • packet switch node — (PSN) A dedicated computer whose purpose is to accept, route and forward packets in a packet-switched network.
  • pairs championship — an event in a sport such as tennis or darts open to pairs of competitors
  • palmer archipelago — a group of islands in the South Atlantic Ocean, off the NW coast of the Antarctic Peninsula.
  • par for the course — an equality in value or standing; a level of equality: The gains and the losses are on a par.
  • pathologic anatomy — the branch of pathology dealing with the morphologic changes in tissues.
  • peppermint camphor — menthol.
  • peter tschaikowsky — Peter Ilyich [il-yich] /ˈɪl yɪtʃ/ (Show IPA), Tchaikovsky, Peter Ilyich.
  • phanerocrystalline — (of a rock) having the principal constituents in the form of crystals visible to the naked eye.
  • phantasmagorically — having a fantastic or deceptive appearance, as something in a dream or created by the imagination.
  • phenol coefficient — the number indicating the effectiveness of a disinfectant as a germicide relative to phenol, which is arbitrarily assigned the number 1: based on the time required to kill a given quantity of a specific type of bacteria.
  • philharmonic pitch — a standard of pitch in which A above middle C is established at 440 vibrations per second.
  • phoenician juniper — a type of juniper that is found in the Mediterranean region
  • photochemical smog — air pollution containing ozone and other reactive chemical compounds formed by the action of sunlight on nitrogen oxides and hydrocarbons, especially those in automobile exhaust.
  • photodecomposition — the breaking down of molecules by radiant energy.
  • photoelectric cell — photocell.
  • physical education — systematic instruction in sports, exercises, and hygiene given as part of a school or college program.
  • physical geography — the branch of geography concerned with natural features and phenomena of the earth's surface, as landforms, drainage features, climates, soils, and vegetation.
  • physical inventory — To carry out a physical inventory is to count all the stock on hand.
  • pick of the litter — objects strewn or scattered about; scattered rubbish.
  • pitch-and-run shot — chip shot.
  • policeman's helmet — a Himalayan balsaminaceous plant, Impatiens glandulifera, with large purplish-pink flowers, introduced into Britain
  • pollen mother cell — one of the mother cells that produce four microspores by meiosis.
  • polychromatophilic — having an affinity for more than one kind of stain, especially for acid, neutral, and basic stains, as polychromatophilic erythroblasts characteristic of pernicious anemia.
  • polyvinyl chloride — a white, water-insoluble, thermoplastic resin, derived by the polymerization of vinyl chloride: used chiefly for thin coatings, insulation, and pipings.
  • positively charged — having a positive charge
  • potassium chlorate — a white or colorless, crystalline, water-soluble, poisonous solid, KClO 3 , used chiefly as an oxidizing agent in the manufacture of explosives, fireworks, matches, bleaches, and disinfectants.
  • potassium chloride — a white or colorless, crystalline, water-soluble solid, KCl, used chiefly in the manufacture of fertilizers and mineral water, and as a source of other potassium compounds.
  • preparatory school — a private or parochial secondary school, especially one boarding its students and providing a college-preparatory education.
  • price on sb's head — If there is a price on someone 's head, an amount of money has been offered for the capture or killing of that person.
  • process scheduling — multitasking
  • processionary moth — a moth of the family Thaumetopoeidae, esp the oak processionary moth (Thaumetopoea processionea), the larvae of which leave the communal shelter nightly for food in a V-shaped procession
  • programmer's cheer — (humour)   "Shift to the left! Shift to the right! Pop up, push down! Byte! Byte! Byte!" [Origin?]
  • projection machine — an apparatus that projects motion pictures; projector.
  • propaganda machine — the group of people, publications, etc, such as of a government, country etc, responsible for the organized dissemination of information, allegations, etc, to assist or damage the cause of a government, movement, etc
  • proton synchrotron — a synchrotron used for accelerating protons.
  • provision merchant — a person or company in the business of retailing food and other provisions
  • pseudo-anarchistic — a person who advocates or believes in anarchy or anarchism.
  • psychogalvanometer — a type of galvanometer for detecting and measuring psychogalvanic currents.
  • psychopathological — the science or study of mental disorders.
  • psychopharmacology — the branch of pharmacology dealing with the psychological effects of drugs.
  • psychosociological — psychological and sociological
  • psychotechnologist — a specialist in psychotechnology
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