15-letter words containing o, t, p, r
- 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
- phototelegraphy — facsimile (def 2a).
- phototopography — topographical surveying employing photogrammetric methods.
- phototransistor — a transistor that amplifies current induced by photoconductivity.
- phototropically — in a phototropic manner
- phototypesetter — a machine for phototypesetting
- phototypography — (formerly) the art or technique of making printing surfaces by light or photography, by any of a large number of processes.
- photoxylography — the process of using photography in order to produce an image on wood, for the use of a wood engraver
- 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.
- pictorial janus — K. Kahn, Xerox. Visual extension of Janus. Requires Strand88 and a PostScript interpreter.
- piece to camera — a TV report in which a reporter is filmed saying something
- 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.
- 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.
- 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
- plenipotentiary — a person, especially a diplomatic agent, invested with full power or authority to transact business on behalf of another.
- plethysmography — the tracking of changes measured in bodily volume
- 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.
- point of honour — a circumstance, event, etc, that involves the defence of one's principles, social honour, etc
- poisson's ratio — the ratio, in an elastic body under longitudinal stress, of the transverse strain to the longitudinal strain.
- police reporter — a news reporter assigned to cover a police department for newsworthy events.
- policy priority — the most important idea or plan that are used by an organization or government as a basis for making decisions
- political party — an organization of people who share the same views about the way power should be used in a country or society (through government, policy-making, etc)
- polycarboxylate — a salt or ester of a polycarboxylic acid. Polycarboxylate esters are used in certain detergents
- polychlorinated — having multiple chlorine atoms
- 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.
- 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.
- port washington — a town on NW Long Island, in SE New York.
- port wine stain — a large birthmark of purplish color, usually on the face or neck.
- port-wine stain — a large birthmark of purplish color, usually on the face or neck.
- portable pixmap — (file format) (PPM) A colour image file format. A PPM file contains the following: a two character "{magic number}" - "P3", the width in pixels, the height in pixels, the maximum colour component value, HEIGHT rows of WIDTH {pixels}. The rows are ordered from top to bottom with the pixels in each row ordered from left to right. Each pixel is represented as three values for red, green, and blue. All parts are separated by whitespace and numbers are in decimal ASCIII representation. A zero pixel component means that colour is absent. Characters from a "#" to the next end-of-line are ignored and no line should be longer than 70 characters. Here is an example of a small pixmap in this format: P3 # feep.ppm 4 4 15 0 0 0 0 0 0 0 0 0 15 0 15 0 0 0 0 15 7 0 0 0 0 0 0 0 0 0 0 0 0 0 15 7 0 0 0 15 0 15 0 0 0 0 0 0 0 0 0 A "RAWBITS" variant has magic number "P6", pixel values are stored as plain binary bytes, instead of ASCII decimal and no whitespace is allowed after a single whitespace character after the maximum colour component value which must be less than or equal to 255.