15-letter words containing o, p, e, r
- 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
- phototelegraphy — facsimile (def 2a).
- phototypesetter — a machine for phototypesetting
- 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 reduction — a musical score having the parts condensed or simplified in two staves, to render the music playable on the piano by one person.
- piece to camera — a TV report in which a reporter is filmed saying something
- piero di cosimo — Piero di [pee-air-oh di;; Italian pye-raw dee] /piˈɛər oʊ dɪ;; Italian ˈpyɛ rɔ di/ (Show IPA), Piero di Cosimo.
- pierrot lunaire — a cycle of 21 songs (1912) for voice and instruments, by Arnold Schönberg, written in Sprechgesang style and set to poems of Albert Giraud in German translation.
- pincer movement — a military maneuver in which both flanks of an enemy force are attacked with the aim of attaining complete encirclement.
- pinkster flower — a wild azalea, Rhododendron periclymenoides, of the U.S., having pink or purplish flowers.
- 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.
- plastic surgeon — doctor who performs cosmetic surgery
- platform rocker — a rocking chair supported on a stationary base
- platform scales — a weighing machine which has a platform that you put something on to be weighed
- platform tennis — a variation of tennis played on a wooden platform enclosed with chicken wire in which the players hit a rubber ball with wooden paddles following the same basic rules as tennis except that only one serve is permitted and balls can be played off the back and side fences.
- platform ticket — a pass allowing a visitor to enter upon a railroad platform from which those not traveling are ordinarily excluded.
- play favourites — to display favouritism
- please yourself — You say 'please yourself' to indicate in a rather rude way that you do not mind or care whether the person you are talking to does a particular thing or not.
- pleasure-loving — enjoying pleasure
- plenipotentiary — a person, especially a diplomatic agent, invested with full power or authority to transact business on behalf of another.
- 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
- plethysmography — the tracking of changes measured in bodily volume
- pleuropneumonia — pleurisy conjoined with pneumonia.
- pneumatotherapy — the use of compressed or rarefied air in treating disease.
- pocket computer — palmtop
- poikilothermism — the state or quality of being cold-blooded, as fishes and reptiles.
- police marksman — a police officer skilled in precision shooting, esp with a sniper rifle
- police presence — attendance or proximity of police officers
- police reporter — a news reporter assigned to cover a police department for newsworthy events.
- polycarboxylate — a salt or ester of a polycarboxylic acid. Polycarboxylate esters are used in certain detergents
- polychlorinated — having multiple chlorine atoms
- polychloroprene — a chloroprene polymer
- polycrystalline — (of a rock or metal) composed of aggregates of individual crystals.
- polyelectrolyte — an electrolyte of high molecular weight, usually polymeric, either natural or synthetic.
- polyunsaturated — of or noting a class of animal or vegetable fats, especially plant oils, whose molecules consist of carbon chains with many double bonds unsaturated by hydrogen atoms and that are associated with a low cholesterol content of the blood.
- polyvinyl resin — any of the class of thermoplastic resins derived by the polymerization or copolymerization of a vinyl compound: used chiefly as adhesives, sizing agents, and coatings.
- 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
- popular culture — cultural activities or commercial products reflecting, suited to, or aimed at the tastes of the general masses of people.
- porcupine river — a river in NW Yukon Territory, Canada and NE Alaska, flowing N and W to the Yukon River. 448 miles (721 km) long.
- port wine stain — a large birthmark of purplish color, usually on the face or neck.