17-letter words containing a, g, e, p, r, o
- organ-pipe cactus — a treelike or columnar cactus, Lemaireocereus marginatus, of Mexico, having a central, erect spine surrounded by spreading spines in clusters of five to eight, and funnel-shaped, brownish-purple flowers.
- pacific tree frog — a common terrestrial frog, Hyla regilla, of western North America, having a dark stripe along each side of the head.
- palaeoarchaeology — the branch of archaeology concerned with the earliest fossil remains
- paleoanthropology — the study of the origins and predecessors of the present human species, using fossils and other remains.
- paleobiogeography — the study of the distribution of ancient plants and animals and their relation to ancient geographic features.
- parallelogram law — Mathematics, Physics. a rule for adding two vectors, as forces (parallelogram of forces) by placing the point of application of one at the point of origin of the other and obtaining their sum by constructing the line connecting the two remaining end points, the sum being the diagonal of the parallelogram whose adjacent sides are the two vectors.
- passenger station — a station used by passengers
- pastoral theology — the branch of theology dealing with the responsibilities of members of the clergy to the people under their care.
- pate de foie gras — See under foie gras.
- perforation gauge — a marked ruler used to measure the number of perforations per unit length along the borders of a stamp.
- performance drugs — the drugs that are taken illegally by athletes to enhance their sporting performance
- 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.
- personnel manager — head of Human Resources department
- 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
- phonological rule — an operation in generative phonology that substitutes one sound or class of sounds for another in a phonological derivation.
- pillion passenger — a person who travels in a seat or place behind the rider of a motorcycle, scooter, horse, etc
- 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.
- poor man's orange — a grapefruit
- 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.
- proficiency badge — an insignia or device granted by the Girl Scouts and worn especially on a uniform to indicate special achievement.
- 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
- programme planner — someone who creates plans or schedules in regards to their line of work or occupation
- programmed camera — a camera with electronic facilities for setting both aperture and shutter speed automatically on the basis of a through-the-lens light value and a given film speed
- 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.
- prolonged-release — A prolonged-release drug delivers a dose of a medication over an extended period of time.
- proof of coverage — A policyholder's proof of coverage is a document from an insurer stating that they have insurance coverage.
- pseudo-aggressive — characterized by or tending toward unprovoked offensives, attacks, invasions, or the like; militantly forward or menacing: aggressive acts against a neighboring country.
- pyroligneous acid — a yellowish, acidic, water-soluble liquid, containing about 10 percent acetic acid, obtained by the destructive distillation of wood: used for smoking meats.
- 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
- 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
- role-playing game — a game in which participants adopt the roles of imaginary characters in an adventure under the direction of a Game Master.
- semi-biographical — of or relating to a person's life: He's gathering biographical data for his book on Milton.
- separation energy — binding energy (def 1).
- shooting practice — practice in shooting for soldiers or other people who shoot guns
- six-speed gearbox — a gearbox containing a system of six gears