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15-letter words containing p, o, i, r

  • perfectionistic — a person who adheres to or believes in perfectionism.
  • perforating gun — A perforating gun is a device used to make holes in oil and gas wells in preparation for production.
  • performing arts — dance, drama, music
  • perfunctoriness — performed merely as a routine duty; hasty and superficial: perfunctory courtesy.
  • period-rotation — a rather large interval of time that is meaningful in the life of a person, in history, etc., because of its particular characteristics: a period of illness; a period of great profitability for a company; a period of social unrest in Germany.
  • periodic motion — any motion that recurs in identical forms at equal intervals of time.
  • periodic system — a system of classification of the elements based on the periodic law.
  • perissosyllabic — (of a line of verse) containing more syllables than expected for the metre being used
  • peroxide blonde — You can refer to a woman whose hair has been artificially been made lighter in colour as a peroxide blonde, especially when you want to show that you disapprove of this, or that you think her hair looks unnatural or unattractive.
  • peroxysulphuric — as in peroxysulphuric acid
  • personal friend — a person who is a friend, rather than a colleague or acquaintance
  • personal injury — injury to an individual
  • personalization — to have marked with one's initials, name, or monogram: to personalize stationery.
  • personification — the attribution of human nature or character to animals, inanimate objects, or abstract notions, especially as a rhetorical figure.
  • peter of amiens — c1050–1115, French monk: preacher of the first Crusade 1095–99.
  • petit bourgeois — a person who belongs to the petite bourgeoisie.
  • petty bourgeois — petit bourgeois
  • phantom circuit — a circuit derived from two suitably arranged pairs of wires, each pair being a circuit (side circuit) and also acting as one half of an additional derived circuit, the entire system providing the capabilities of three circuits while requiring wires for only two.
  • pharmacological — the science dealing with the preparation, uses, and especially the effects of drugs.
  • phenazopyridine — a substance, C 1 1 H 1 2 ClN 5 , used as a lower urinary tract analgesic.
  • phenylketonuria — an inherited disease due to faulty metabolism of phenylalanine, characterized by phenylketones in the urine and usually first noted by signs of mental retardation in infancy.
  • phenylketonuric — an inherited disease due to faulty metabolism of phenylalanine, characterized by phenylketones in the urine and usually first noted by signs of mental retardation in infancy.
  • philanthropical — of, pertaining to, engaged in, or characterized by philanthropy; benevolent: a philanthropic foundation.
  • phlebosclerosis — sclerosis, or hardening, of the walls of veins.
  • phloem necrosis — a disease of the American elm caused by a mycoplasmalike organism, characterized by yellowing and necrosis of the foliage and yellowish-brown discoloration of the phloem.
  • phonautographic — relating to a phonautograph or a piece of equipment that records sound visually by detecting the sound waves and indicating them on a graph
  • phonocardiogram — the graphic record produced by a phonocardiograph.
  • phonogramically — in a phonogramic manner
  • phosphocreatine — a compound, C 4 H 1 0 O 5 N 3 P, found chiefly in muscle, formed by the enzymatic interaction of an organic phosphate and creatine, the breakdown of which provides energy for muscle contraction.
  • phosphoric acid — any of three acids, orthophosphoric acid, H 3 PO 4 , metaphosphoric acid, HPO 3 , or pyrophosphoric acid, H 4 P 2 O 7 , derived from phosphorus pentoxide, P 2 O 5 , and various amounts of water.
  • phosphorylation — to introduce the phosphoryl group into (an organic compound).
  • phosphorylative — of or relating to phosphorylation
  • photoelectronic — relating to electronic effects or devices affected by light
  • photoheliograph — an instrument for photographing the sun, consisting of a camera and a specially adapted telescope.
  • photojournalism — journalism in which photography dominates written copy, as in certain magazines.
  • photolithograph — Also, photolithoprint [foh-tuh-lith-uh-print] /ˌfoʊ təˈlɪθ əˌprɪnt/ (Show IPA). a lithograph printed from a stone or the like upon which a picture or design has been formed by photography.
  • photomicrograph — a photograph taken through a microscope.
  • photomicroscope — a microscope having an illuminator and a camera mechanism for producing a photomicrograph.
  • photomultiplier — an extremely sensitive detector of light and of other radiation, consisting of a tube in which the electrons released by radiation striking a photocathode are accelerated, greatly amplifying the signal obtainable from small quantities of radiation.
  • photoproduction — the light-induced production of a species of molecule such as a radical or ion
  • photorefractive — of or relating to a change in the index of refraction by spatial variations of the light intensity, as in a laser.
  • photosensitizer — a drug, food, or other chemical that increases sensitivity to light and other visible photons
  • phototransistor — a transistor that amplifies current induced by photoconductivity.
  • phototropically — in a phototropic manner
  • phrasemongering — the act of coining memorable phrases
  • phrenologically — in a manner relating to phrenology
  • physical memory — (memory management)   The memory hardware (normally RAM) installed in a computer. The term is only used in contrast to virtual memory.
  • physiotherapist — physical therapy.
  • piano accordion — accordion (def 1).
  • piano reduction — a musical score having the parts condensed or simplified in two staves, to render the music playable on the piano by one person.
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