17-letter words containing p, r, o, a, g, t
- perforation gauge — a marked ruler used to measure the number of perforations per unit length along the borders of a stamp.
- permutation group — a mathematical group whose elements are permutations and in which the product of two permutations is the same permutation as is obtained by performing them in succession.
- persona non grata — a person who is not welcome: He has become persona non grata in our club since his angry outburst.
- phantom pregnancy — the occurrence of signs of pregnancy, such as enlarged abdomen and absence of menstruation, when no embryo is present, due to hormonal imbalance
- photofluorography — photography of images produced by a fluoroscopic examination, used in x-ray examination of the lungs of large groups of people.
- pitching rotation — the regular, scheduled succession of starting pitchers designated by a manager: a four-man pitching rotation in September.
- polarizing filter — a camera lens filter used to control the plane of polarization of light entering the lens.
- political refugee — a person who has fled from a homeland because of political persecution.
- popular etymology — folk etymology.
- portfolio manager — a person employed by others to make investments for them
- portuguese guinea — former name of Guinea-Bissau.
- postural drainage — a therapy for clearing congested lungs by placing the patient in a position for drainage by gravity, often accompanied by percussion with hollowed hands.
- powder metallurgy — the art or science of manufacturing useful articles by compacting metal and other powders in a die, followed by sintering.
- pre-configuration — the relative disposition or arrangement of the parts or elements of a thing.
- pre-investigation — the act or process of investigating or the condition of being investigated.
- pre-technological — of or relating to technology; relating to science and industry.
- precision casting — investment casting.
- predatory pricing — If a company practises predatory pricing, it charges a much lower price for its products or services than its competitors in order to force them out of the market.
- prerogative court — a former ecclesiastical court in England and Ireland for the trial of certain testamentary cases.
- program generator — a computer program that can be used to help to create other computer programs
- program statement — a single instruction in a computer program
- progressive party — a political party formed in 1912 under the leadership of Theodore Roosevelt, advocating popular control of government, direct primaries, the initiative, the referendum, woman suffrage, etc.
- prothoracic gland — either of a pair of endocrine glands in the anterior thorax of some insects, functioning to promote the series of molts from hatching to adulthood.
- pythagorean scale — the major scale as derived acoustically by Pythagoras from the perfect fifth.
- radiometeorograph — a device for the automatic transmission by radio of the data from a set of meteorological instruments
- rapid prototyping — (programming) The creation of a working model of a software module to demonstrate the feasibility and suitability of the function. The prototype is expected to be replaced or refined before inclusion in the final product. Rapid prototyping contrasts with a DIRFT approach which emphasises careful design and implementation to avoid the overheads of debugging and testing prototype code. Rapid prototyping is appropriate when the requirements are unclear or likely to change (which is most of the time).
- repertory catalog — a catalog containing bibliographic records that indicate locations of materials in more than one library or in several units of one library.
- request programme — a programme on the radio where listeners can request certain songs or tracks
- rough puff pastry — a rich flaky pastry made with butter and used for pie-crusts, flans, etc
- separation energy — binding energy (def 1).
- shooting practice — practice in shooting for soldiers or other people who shoot guns
- sound spectrogram — a graphic representation, produced by a sound spectrograph, of the frequency, intensity, duration, and variation with time of the resonance of a sound or series of sounds.
- spark photography — photography of fast-moving objects, as bullets, by the light of an electric spark.
- spectroheliograph — an apparatus for making photographs of the sun with a monochromatic light to show the details of the sun's surface and surroundings as they would appear if the sun emitted only that light.
- split keyboarding — the act or practice of editing data from one terminal on another terminal
- steamboat springs — a town in NW Colorado: ski resort.
- stereolithography — a process for creating three-dimensional objects using a computer-controlled laser to build up the required structure, layer by layer, from a liquid photopolymer that solidifies.
- stereophotography — photography producing stereoscopic images.
- superregeneration — regeneration in which a signal is alternately amplified and quenched at a frequency slightly above the audible range to achieve high sensitivity with a single tube.
- taiping rebellion — a movement of religious mysticism and agrarian unrest in China between 1850 and 1864 which weakened the Manchu dynasty but was eventually suppressed with foreign aid
- take in good part — to respond to (teasing) with good humour
- topological group — a set that is a group and a topological space and for which the group operation and the map of an element to its inverse are continuous functions.
- travelling people — Gypsies or other itinerant people: a term used esp by such people of themselves
- trick photography — photography that creates an illusion
- turbosupercharger — (formerly) a turbocharger.
- well-photographed — a picture produced by photography.
- youth programming — the creation and scheduling of television programmes specifically aimed at young people
- zygomatic process — any of several bony processes that articulate with the cheekbone.