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15-letter words containing r, e, l, t, o

  • 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.
  • perchloroethane — hexachloroethane.
  • percussion tool — a power driven tool which operates by striking rapid blows: the power may be electricity or compressed air
  • personal estate — movable property
  • personal growth — development as an individual
  • personal stereo — A personal stereo is a small cassette or CD player with very light headphones, which people carry round so that they can listen to music while doing something else.
  • personalization — to have marked with one's initials, name, or monogram: to personalize stationery.
  • petroleum ether — a volatile mixture of the higher alkane hydrocarbons, obtained as a fraction of petroleum and used as a solvent
  • petroleum jelly — sticky substance used as lubricant
  • 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.
  • phosphorylative — of or relating to phosphorylation
  • photodegradable — (of a substance) capable of being broken down by light.
  • 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.
  • 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.
  • phototelegraphy — facsimile (def 2a).
  • 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.
  • pinkster flower — a wild azalea, Rhododendron periclymenoides, of the U.S., having pink or purplish flowers.
  • 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
  • poikilothermism — the state or quality of being cold-blooded, as fishes and reptiles.
  • 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
  • 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.
  • popular culture — cultural activities or commercial products reflecting, suited to, or aimed at the tastes of the general masses of people.
  • 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.
  • portland cement — a type of hydraulic cement usually made by burning a mixture of limestone and clay in a kiln.
  • portugal laurel — Prunus lusitanica; type of cherry
  • post-liberation — the act of liberating or the state of being liberated.
  • post-revolution — an overthrow or repudiation and the thorough replacement of an established government or political system by the people governed.
  • posthole digger — a tool or device for digging a posthole.
  • postoperatively — occurring after a surgical operation.
  • potash feldspar — any of the feldspar minerals having the composition KAlSi 3 O 8 , as orthoclase.
  • pre-celebration — an act of celebrating.
  • pre-contractual — a preexisting contract that legally prevents a person from making another contract of the same nature.
  • precinct police — the police responsible for a district of a city
  • preconceptional — a conception or opinion formed beforehand.
  • predicate logic — (logic)   (Or "predicate calculus") An extension of propositional logic with separate symbols for predicates, subjects, and quantifiers. For example, where propositional logic might assign a single symbol P to the proposition "All men are mortal", predicate logic can define the predicate M(x) which asserts that the subject, x, is mortal and bind x with the universal quantifier ("For all"): All x . M(x) Higher-order predicate logic allows predicates to be the subjects of other predicates.
  • preequalization — preemphasis.
  • preimplantation — relating to the period before implantation in the uterus
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