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15-letter words containing h, i, p, o, t

  • photoelectronic — relating to electronic effects or devices affected by light
  • photoexcitation — the creation of an increase in energy in atoms, molecules or ions caused by the absorption of a photon
  • photoheliograph — an instrument for photographing the sun, consisting of a camera and a specially adapted telescope.
  • photoionization — the phenomenon in which the absorption of electromagnetic radiation by an atom in a gas induces the atom to emit a bound electron and thereby become ionized.
  • 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.
  • photomechanical — noting or pertaining to any of various processes for printing from plates or surfaces prepared by the aid of 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
  • photosynthesize — to produce carbohydrates by photosynthesis: Plants with light green leaves don't photosynthesize as well as those with darker leaves.
  • phototactically — in a phototactic manner
  • phototheodolite — an optical tracking instrument consisting of a camera and theodolite mounted on a single tripod, used in photogrammetry and in tracking rockets.
  • phototransistor — a transistor that amplifies current induced by photoconductivity.
  • phototropically — in a phototropic manner
  • physical optics — the branch of optics concerned with the wave properties of light, the superposition of waves, the deviation of light from its rectilinear propagation in a manner other than that considered by geometrical optics, the interaction of light with matter, and the quantum, corpuscular aspects of light.
  • physicalization — to express in physical terms; give form or shape to: The dancers physicalized the mood of the music.
  • physiopathology — pathophysiology.
  • physiotherapist — physical therapy.
  • phytochemically — in a phytochemical manner
  • phytopathogenic — of, possessing the properties of, or relating to a phytopathogen
  • pigeon shooting — the act of hunting and shooting live pigeons
  • pink-shirt book — (publication)   "The Peter Norton Programmer's Guide to the IBM PC". The original cover featured a picture of Peter Norton with a silly smirk on his face, wearing a pink shirt. Perhaps in recognition of this usage, the current edition has a different picture of Norton wearing a pink shirt. See also book titles.
  • 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.
  • plain chocolate — dark eating chocolate
  • plainclothesman — a police officer, especially a detective, who wears ordinary civilian clothes while on duty.
  • play havoc with — bring chaos to
  • poikilothermism — the state or quality of being cold-blooded, as fishes and reptiles.
  • point of honour — a circumstance, event, etc, that involves the defence of one's principles, social honour, etc
  • point-and-shoot — of or denoting a camera that does not require manual adjustment of shutter speed, focus, aperture, etc.
  • polish notation — a logical notation that dispenses with the need for brackets by writing the logical constants as operators preceding their arguments
  • 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
  • port washington — a town on NW Long Island, in SE New York.
  • 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
  • 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.
  • protonephridium — a tubular, excretory structure in certain invertebrates, as flatworms, rotifers, and some larvae, usually ending internally in flame cells and having an external pore
  • protospatharius — (of the Byzantine empire) a high-ranking official in the imperial guard
  • pseudoarthrosis — a joint formed by fibrous tissue bridging the gap between the two fragments of bone of an old fracture that have not united
  • pseudonephritis — a condition, thought to be benign, in which microscopic amounts of blood and protein are present in the urine, occurring commonly among athletes after strenuous exercise.
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