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15-letter words containing h, i, e, r

  • pentaerythritol — a white, crystalline, water-soluble powder, C 5 H 1 2 O 4 , used chiefly in the manufacture of alkyd resins, varnishes, plasticizers, and explosives.
  • pepin the short — ("Pepin the Short") died a.d. 768, king of the Franks 751–768 (father of Charlemagne).
  • perchloric acid — a colorless, syrupy hygroscopic liquid, HClO 4 , an acid of chlorine containing one more oxygen atom than chloric acid: used chiefly as a reagent in analytical chemistry.
  • peroxysulphuric — as in peroxysulphuric acid
  • phenazopyridine — a substance, C 1 1 H 1 2 ClN 5 , used as a lower urinary tract analgesic.
  • phenylhydrazine — a yellow, poisonous liquid or low-melting solid, C 6 H 8 N 2 , used in chemical analysis and organic synthesis.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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
  • 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.
  • pied flycatcher — a small black and white migratory bird of Europe and western Asia, Ficedula hypoleuca
  • pilgrim fathers — the Pilgrims (of Plymouth Colony)
  • pinochet ugarte — Augusto [ou-goos-taw] /aʊˈgus tɔ/ (Show IPA), 1915–2006, Chilean army general and political leader: president 1973–90.
  • pistachio green — a light or medium shade of yellow green.
  • pithecanthropus — a former genus of extinct hominids whose members have now been assigned to the proposed species Homo erectus.
  • pixels per inch — (unit, graphics)   (ppi) The unit used to measure resolution of a bitmap display or video input device.
  • plant-hire firm — a company that hires out mobile mechanical equipment for construction, road-making, etc
  • pleochroic halo — a dark-colored, microscopic ring around a minute radioactive particle in certain mineral crystals, used in estimating the age of the rocks containing these crystals
  • poikilothermism — the state or quality of being cold-blooded, as fishes and reptiles.
  • polychlorinated — having multiple chlorine atoms
  • pontine marshes — an area of W Italy, southeast of Rome: formerly malarial swamps, drained in 1932–34 after numerous attempts since 160 bc had failed
  • posthemorrhagic — occurring after a haemorrhage
  • posthole digger — a tool or device for digging a posthole.
  • postsynchronize — to add sound, such as dubbing, to a film or video after shooting is completed
  • power macintosh — Power Mac
  • prairie chicken — either of two North American gallinaceous birds of western prairies, Tympanuchus cupido (greater prairie chicken) or T. pallidicinctus (lesser prairie chicken) having rufous, brown, black, and white plumage.
  • pre-elizabethan — (of English culture, history, traditions, etc.) before the reign of Queen Elizabeth I; before the second half of the 16th century.
  • pre-established — to establish beforehand.
  • primary feather — any of the flight feathers growing from the manus of a bird's wing
  • primary teacher — a teacher in a primary school
  • prince charming — (sometimes lowercase) a man who embodies a woman's romantic ideal.
  • private hearing — a formal or official trial that is not open to the public
  • probationership — the position of a probationer
  • process heating — Process heating is heating, usually from steam, which is used to increase the temperature in a process vessel.
  • property rights — a legal right to or in a particular property.
  • propionaldehyde — a colorless, water-soluble liquid, C 3 H 6 O, having a pungent odor: used chiefly in the manufacture of plastics.
  • propylhexedrine — a colorless, adrenergic, water-soluble liquid, C 1 0 H 2 N, used by inhalation as a nasal decongestant.
  • proscenium arch — the arch separating the stage from the auditorium
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