12-letter words containing a, p, t, e, r
- petrifactive — having the ability to turn substances into stone
- petrobrusian — a member of a 12th-century sect in S France that rejected the Mass, infant baptism, prayers for the dead, sacerdotalism, the veneration of the cross, and the building of churches.
- petrobutanol — butyl alcohol.
- petrodollars — Petrodollars are a unit of money used to calculate how much a country has earned by exporting petroleum or natural gas.
- petrol gauge — a gauge that indicates the amount of petrol left in the tank of a vehicle
- petrozavodsk — a city in NW Russia, capital of the Karelian Autonomous Republic, on Lake Onega: developed around ironworks established by Peter the Great in 1703; university (1940). Pop: 265 000 (2005 est)
- phanerophyte — a tree or shrub that bears its perennating buds more than 25 cm above the level of the soil
- pharmaceutic — pertaining to pharmacy or pharmacists.
- pharmacolite — hydrous calcium arsenate, 2CaO⋅As 2 O 5 ⋅5H 2 O, formed by natural alteration of mineral deposits containing arsenopyrite and arsenical ores of cobalt and silver.
- phenanthrene — a colorless, shiny, crystalline, water-insoluble isomer of anthracene, C 1 4 H 1 0 , derived from coal tar: used chiefly in dyestuffs and in the synthesis of drugs.
- photo spread — a picture spread. See under spread (def 33).
- photoengrave — to make a photoengraving of.
- photographer — a person who takes photographs, especially one who practices photography professionally.
- photogravure — any of various processes, based on photography, by which an intaglio engraving is formed on a metal plate, from which ink reproductions are made.
- photonuclear — of, relating to, or caused by the collision of high-energy photons with the nucleus of an atom.
- 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.
- phototherapy — treatment of disease, especially of the skin, by means of light rays.
- phreatophyte — a long-rooted plant that absorbs its water from the water table or the soil above it.
- phylacteries — Judaism. either of two small, black, leather cubes containing a piece of parchment inscribed with verses 4–9 of Deut. 6, 13–21 of Deut. 11, and 1–16 of Ex. 13: one is attached with straps to the left arm and the other to the forehead during weekday morning prayers by Orthodox and Conservative Jewish men.
- phytographer — a botanist involved with plant description
- phytotherapy — the use of plants and plant products for medicinal purposes
- pi character — any special character, such as an accent or mathematical symbol, which is not normally obtained in a standard type fount
- piatra neamt — a city in NE Romania, in Moldavia.
- pictorialize — to make pictorial; illustrate or represent with or as if with pictures.
- picture card — face card
- picture rail — bar from which pictures are hung
- picture sash — a large window sash, as for a picture window.
- pied a terre — a residence, as an apartment, for part-time or temporary use.
- pied-a-terre — a residence, as an apartment, for part-time or temporary use.
- pilot ladder — Jacob's ladder (def 2a).
- 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 perch — a purplish North American freshwater fish, Aphredoderus sayanus, the adult of which has the vent located in back of the lower jaw.
- pirate radio — radio broadcasting illegally
- placentiform — shaped like a placenta, with a flat rounded form
- plain turkey — a bustard
- plane strain — Plane strain is a two-dimensional state of strain in which all the shape changes of a material happen on a single plane.
- plane stress — Plane stress is a two-dimensional state of stress in which all stress is applied in a single plane.
- planet earth — the world
- plant-cutter — any of several South American, passerine birds of the family Phytotomidae, superficially resembling grosbeaks but having serrated edges on the bill that aid in cutting leaves and other plant food.
- plaster cast — any piece of sculpture reproduced in plaster of Paris.
- plasterboard — a material used for insulating or covering walls, or as a lath, consisting of paper-covered sheets of gypsum and felt.
- plasteriness — the state of being made of or resembling plaster
- plate armour — armour made of thin metal plates, which superseded mail during the 14th century
- plate girder — an iron or steel beam built up from plates and shapes welded or riveted together, usually including a plate or plates for a web, four angle irons forming two flanges, and a pair of plates to reinforce the flanges.
- plate warmer — a device for warming plates
- platform bed — a bed, originating in Scandinavia in the 1930s, consisting of a simple shallow box for holding a mattress situated on a slightly recessed pedestal.
- play therapy — a form of psychotherapy used chiefly with children, in which patients act out situations in play that are expressive of their emotional problems, conflicts, etc.
- pluriliteral — (in Hebrew grammar) containing more than three letters in the root
- pneumothorax — the presence of air or gas in the pleural cavity.
- poetastering — the profession of being a poetaster