12-letter words containing p, o, r, t, i
- phenocrystic — relating to a phenocryst
- philanthropy — altruistic concern for human welfare and advancement, usually manifested by donations of money, property, or work to needy persons, by endowment of institutions of learning and hospitals, and by generosity to other socially useful purposes.
- phosphaturia — the presence of an excessive quantity of phosphates in the urine.
- photo relief — a method of showing the configuration of the relief of an area by photographing a model of it that is illuminated by a lamp in the northwest corner
- photochromic — (of chemically treated glass or plastic) capable of darkening or changing color when exposed to light.
- photographic — of or relating to photography.
- photorealism — a style of painting flourishing in the 1970s, especially in the U.S., England, and France, and depicting commonplace scenes or ordinary people, with a meticulously detailed realism, flat images, and barely discernible brushwork that suggests and often is based on or incorporates an actual photograph.
- photothermic — pertaining to the thermal effects of light.
- phototrophic — any organism that uses light as its principal source of energy.
- phototropism — phototropic tendency or growth.
- phrenologist — a psychological theory or analytical method based on the belief that certain mental faculties and character traits are indicated by the configurations of the skull.
- phrontistery — a place or establishment for thinking, studying, or learning
- physogastric — pertaining to the swollen, membranous abdomen of certain insects, especially termite and ant queens.
- pictographic — a pictorial sign or symbol.
- pictorialism — Fine Arts. the creation or use of pictures or visual images, especially of recognizable or realistic representations.
- pictorialist — Fine Arts. the creation or use of pictures or visual images, especially of recognizable or realistic representations.
- pictorialize — to make pictorial; illustrate or represent with or as if with pictures.
- picture book — a book consisting mainly or entirely of pictures, especially one for children who have not yet learned to read.
- picture mold — a molding near a ceiling from which pictures can be suspended.
- picture show — motion picture.
- picturephone — a type of telephone where users can see each other as they talk, through the transmission of video images
- piet-my-vrou — a cuckoo, Notococcyx solitarius, having a red breast
- pig-ignorant — extremely ignorant or unknowledgeable
- pilot burner — pilot light (def 1).
- pilot ladder — Jacob's ladder (def 2a).
- pinot grigio — a variety of grape, grown in Italy for wine-making
- pinturicchio — real name Bernardino di Betto. ?1454–1513, Italian painter of the Umbrian school
- pipe routing — Pipe routing is the planning of pipeline layout, which includes considerations of neatness, economy, and safety.
- pirate coast — an independent federation in E Arabia, formed in 1971, now comprising seven emirates on the S coast (formerly, Pirate Coast or Trucial Coast) of the Persian Gulf, formerly under British protection: Abu Dhabi, Dubai, Sharjah, Ajman, Umm al-Qaiwain, Ras al-Khaimah (joined 1972), and Fujairah. About 32,300 sq. mi. (83,657 sq. km). Capital: Abu Dhabi. Abbreviation: U.A.E.
- pirate radio — radio broadcasting illegally
- piston skirt — The piston skirt is the cylindrical walls of a piston.
- pitched-roof — a roof sloping downward in two parts at an angle from a central ridge, so as to leave a gable at each end.
- pityrosporum — a genus of fungi that live on the skin, esp that of the scalp and face, present in conditions such as dandruff and dermatitis
- placentiform — shaped like a placenta, with a flat rounded form
- plagiotropic — growing more or less divergent from the vertical.
- pleiotropism — the condition of a gene affecting more than one characteristic of the phenotype
- ploughwright — a person who makes ploughs
- pneumotropic — directed toward or having an affinity for lung tissue.
- pocket drive — a small portable memory device that can be plugged into the USB port of many different types of computer
- poetastering — the profession of being a poetaster
- pogson ratio — the brightness ratio of two celestial objects that differ by one magnitude. On the Pogson scale a difference of 5 magnitudes is defined as a difference of 100 in the intensities of two stars; therefore a difference of 1 magnitude is equal to the fifth root of 100, i.e. 2.512
- poikilotherm — an organism with poikilothermic qualities
- point charge — an electric charge considered to exist at a single point, and thus having neither area nor volume.
- point source — a source of radiation sufficiently distant compared to its length and width that it can be considered as a point.
- point spread — a betting device, established by oddsmakers and used to attract bettors for uneven competitions, indicating the estimated number of points by which a stronger team can be expected to defeat a weaker team, the point spread being added to the weaker team's actual points in the game and this new figure then compared to the stronger team's points to determine winning bets.
- point-spread — a betting device, established by oddsmakers and used to attract bettors for uneven competitions, indicating the estimated number of points by which a stronger team can be expected to defeat a weaker team, the point spread being added to the weaker team's actual points in the game and this new figure then compared to the stronger team's points to determine winning bets.
- pointe-noire — a seaport in the S Republic of Congo.
- pointed arch — an arch having a pointed apex.
- polar lights — the aurora borealis in the Northern Hemisphere or the aurora australis in the Southern Hemisphere.
- polarization — a sharp division, as of a population or group, into opposing factions.