20-letter words containing i, r, a, p, u, t

polyanthus narcissus — a Eurasian amaryllidaceous plant, Narcissus tazetta, having clusters of small yellow or white fragrant flowers
population inversion — a condition of matter in which more electrons are in a high energy state than in a lower energy state, as is required for the operation of a laser.
population parameter — a quantity or statistical measure that, for a given population, is fixed and that is used as the value of a variable in some general distribution or frequency function to make it descriptive of that population: The mean and variance of a population are population parameters.
potassium bichromate — an orange-red, crystalline, water-soluble, poisonous powder, K 2 Cr 2 O 7 , used chiefly in dyeing, photography, and as a laboratory reagent.
potassium bitartrate — cream of tartar.
potassium dichromate — an orange-red crystalline soluble solid substance that is a good oxidizing agent and is used in making chrome pigments and as a bleaching agent. Formula: K2Cr2O7
potassium-bitartrate — a white, crystalline, water-soluble powder, C 4 H 5 KO 6 , used chiefly as an ingredient in baking powders and in galvanic tinning of metals. Also called potassium bitartrate, potassium acid tartrate. Compare tartar (def 3).
pound cost averaging — a method of accumulating capital by investing a fixed sum in a particular security at regular intervals, in order to achieve an average purchase price below the arithmetic average of the market prices on the purchase dates
prefecture apostolic — a territory in the early stage of missionary development.
premenstrual tension — Premenstrual tension is the same as premenstrual syndrome. The abbreviation PMT is often used.
prenuptial agreement — A prenuptial agreement is a written contract made between a man and a woman before they marry, in which they state how their assets such as property and money should be divided if they get divorced.
prepatellar bursitis — inflammation and swelling of the bursa in front of the kneecap, caused esp by constant kneeling on a hard surface
probability function — the function the values of which are probabilities of the distinct outcomes of a discrete random variable
production agreement — a contract concerning the production or manufacture of something
prohibited substance — a substance, such as a drug, etc, that is banned or forbidden by law or other authority
property speculation — the buying or selling of property in the hope of deriving capital gains
proportional counter — a radiation counter in which the strength of each electric pulse generated per count is proportional to the energy of the particle or photon producing the pulse, alpha particles producing a different electric pulse from beta rays.
prosecuting attorney — the public officer in a county, district, or other jurisdiction charged with carrying on the prosecution in criminal proceedings.
public administrator — an official of a city, county, or state government.
put in an appearance — the act or fact of appearing, as to the eye or mind or before the public: the unannounced appearance of dinner guests; the last appearance of Caruso in Aïda; her first appearance at a stockholders' meeting.
pyrenees-atlantiques — a department in SW France. 2978 sq. mi. (7710 sq. km). Capital: Pau.
queen of the prairie — a tall plant, Filipendula rubra, of the rose family, having branching clusters of pink flowers, growing in meadows and prairies.
recuperative furnace — a furnace having its incoming air heated by exhaust gases, the passage of air and gases through the furnace being always in the same direction.
refuse disposal unit — a unit or part of a sink that disposes of waste food, etc, by grinding
requiescat (in pace) — may he or she rest (in peace)
respiratory quotient — the ratio of the amount of carbon dioxide released by the lungs to the amount of oxygen taken in during a given period.
rocky mountain sheep — bighorn.
rotations per minute — revolutions per minute
santa cruz operation — (SCO) A supplier of Unix systems for Intel microprocessors. They supply Xenix and Open Desktop. Founded in 1979, SCO became a public company in May, 1993 and trades on the Nasdaq National Market System under the symbol SCOC. SCO maintains its world headquarters in Santa Cruz, California, USA; a European headquarters in Watford, England; a Government Systems Group in Reston, Virginia; and offices in Asia, Australia, Canada, Latin America, and throughout Europe and the United States. In February 1993, SCO acquired IXI Limited of Cambridge, England, the leading supplier of Unix System windowing software.
semiautobiographical — pertaining to or being a fictionalized account of an author's own life.
south american plate — a major tectonic division of the earth's crust, comprising the continent of South America and several ocean basins and bounded on the north by the Caribbean Plate, on the east by the Mid-Atlantic Ridge, on the west by a submarine trench that borders the western coast of the continent, and on the south by the Antarctic Plate.
special patrol group — a former police unit tasked with counter terrorism in the Royal Ulster Constabulary
spontaneous abortion — miscarriage (def 1).
spontaneous-abortion — Also called voluntary abortion. the removal of an embryo or fetus from the uterus in order to end a pregnancy.
square of opposition — a diagrammatic representation of the opposition of categorical propositions.
subscription library — a commercial lending library
supersonic transport — a commercial jet airplane that can fly faster than the speed of sound. Abbreviation: SST.
temperature gradient — rate of change of temperature with distance.
therapeutic abortion — abortion performed when a woman's pregnancy endangers her health.
to bring up the rear — If a person or vehicle is bringing up the rear, they are the last person or vehicle in a moving line of them.
to disturb the peace — If someone is accused of disturbing the peace, they are accused of behaving in a noisy and offensive way in public.
to keep your hand in — If you do something to keep your hand in, you practise a skill or hobby occasionally in order to remain fairly good at it.
to make up your mind — If you make up your mind or make your mind up, you decide which of a number of possible things you will have or do.
to spread your wings — If you spread your wings, you do something new and rather difficult or move to a new place, because you feel more confident in your abilities than you used to and you want to gain wider experience.
tropical disturbance — a very weak, or incipient, tropical cyclone.
tubing head pressure — The tubing head pressure is the pressure on the tubing, which is measured at the wellhead.
united arab republic — a name given the union of Egypt and Syria from 1958 to 1961; after that, the official name of Egypt alone until 1971. Abbreviation: U.A.R.
upmail tricia prolog — ftp://ftp.csd.uu.se/pub/Tricia/README. E-mail: <[email protected]>.
upper income bracket — a grouping of the highest earning tax payers
upper yosemite falls — a section of Yosemite Falls in central California, in the Yosemite National Park that is 436 m (1430 ft) high

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