0%

19-letter words containing i, o, a

  • paradichlorobenzene — a white, crystalline, volatile, water-insoluble solid, C 6 H 4 Cl 2 , of the benzene series, having a penetrating odor: used chiefly as a moth repellent.
  • parallel processing — extending in the same direction, equidistant at all points, and never converging or diverging: parallel rows of trees.
  • parallel projection — a projection from one plane to a second plane in which the lines joining points on the first plane and corresponding images are parallel.
  • parametric equation — one of two or more equations expressing the location of a point on a curve or surface by determining each coordinate separately.
  • parasympathomimetic — having an effect similar to that produced when the parasympathetic nervous system is stimulated
  • parathyroid extract — an aqueous preparation obtained from the parathyroid gland of cattle, used in medicine chiefly in cases of parathyroid deficiency and in veterinary medicine in the treatment of tetanic convulsions.
  • parathyroid hormone — a polypeptide hormone, produced in the parathyroid glands, that helps regulate the blood levels of calcium and phosphate. Abbreviation: PTH.
  • 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.
  • parthenogenetically — development of an egg without fertilization.
  • participatory sport — a sport in which people take part, (as opposed to a spectator sport)
  • particle dispersoid — A particle dispersoid is a suspension of solid particles in a gas.
  • particle separation — a rule that moves the particle of a phrasal verb, thus deriving a sentence like He looked the answer up from a structure that also underlies He looked up the answer
  • particle technology — Particle technology is knowledge and study which relates to particles, and is used in industry.
  • particular solution — a solution of a differential equation containing no arbitrary constants.
  • parting of the ways — When there is a parting of the ways, two or more people or groups of people stop working together or travelling together.
  • pass someone's lips — to be eaten or drunk by someone
  • pastoral counseling — the use of psychotherapeutic techniques by trained members of the clergy to assist parishioners who seek help for personal or emotional problems.
  • pattern recognition — the automated identification of shapes or forms or patterns of speech.
  • paumotu archipelago — Tuamotu Archipelago.
  • pedestrian crossing — place to cross road
  • perfoliate bellwort — a slender plant, Uvularia perfoliata, of the lily family, of eastern North America, having pale yellow, bell-shaped flowers.
  • performance anxiety — the stage fright that a person feels when they are about to perform (a play, piece of music etc) in front of an audience
  • performance figures — the statistics that indicate how well or badly a company or organization has performed
  • 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).
  • perpetual adoration — uninterrupted adoration of the Blessed Sacrament.
  • perpetual inventory — a form of stock control in which running records are kept of all acquisitions and disposals
  • personal belongings — possessions; things that belong to someone
  • personal stationery — headed notepaper
  • phacoemulsification — the removal of a cataract by first liquefying the affected lens with ultrasonic vibrations and then extracting it by suction.
  • phakoemulsification — the removal of a cataract by first liquefying the affected lens with ultrasonic vibrations and then extracting it by suction.
  • phenanthrenequinone — a yellowish-orange, crystalline, water-insoluble solid, C 1 4 H 8 O 2 , used chiefly in organic synthesis and the manufacture of dyes.
  • phenylpropanolamine — a substance, C 9 H 1 3 NO, related to ephedrine and amphetamine, available in various popular nonprescription diet aids as an appetite suppressant.
  • phenylthiocarbamide — a crystalline, slightly water-soluble solid, C 6 H 5 NHCSNH 2 , that is either tasteless or bitter, depending upon the heredity of the taster, and is used in medical genetics and as a diagnostic.
  • philippine mahogany — any of several Philippine trees of the genus Shorea and related genera, having brown or reddish wood used as lumber and in cabinetry.
  • philosophical logic — the branch of philosophy that studies the relationship between formal logic and ordinary language, esp the extent to which the former can be held accurately to represent the latter
  • photodisintegration — the disintegration of a nucleus, induced by its absorption of a photon.
  • photographic memory — total recall
  • photopolymerization — polymerization induced by light.
  • photoreconnaissance — reconnaissance using aerial photography.
  • photovoltaic effect — the phenomenon in which the incidence of light or other electromagnetic radiation upon the junction of two dissimilar materials, as a metal and a semiconductor, induces the generation of an electromotive force.
  • phthalocyanine blue — a pigment used in painting, derived from copper phthalocyanine and characterized chiefly by its brilliant, dark-blue color and by permanence.
  • piece of the action — the process or state of acting or of being active: The machine is not in action now.
  • pileated woodpecker — a large, black-and-white American woodpecker, Dryocopus pileatus, having a prominent red crest.
  • pilgrimage of grace — a rebellion in 1536 in N England against the Reformation and Henry VIII's government
  • pillars of hercules — the two promontories at the E end of the Strait of Gibraltar: the Rock of Gibraltar on the European side and the Jebel Musa on the African side; according to legend, formed by Hercules
  • pirates of penzance — an operetta (1879) by Sir William S. Gilbert and Sir Arthur Sullivan.
  • pistachio ice cream — ice cream flavoured with pistachios
  • pistol-handle knife — a table knife, especially of the 18th century, having a slightly curved handle resembling the grip of a flintlock pistol.
Was this page helpful?
Yes No
Thank you for your feedback! Tell your friends about this page
Tell us why?