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15-letter words containing a, d, p, r, o

  • paradise flower — a prickly vine, Solanum wendlandii, of the nightshade family, native to Costa Rica, having branched clusters of showy lilac-blue flowers.
  • parallelopipeda — plural of parallelopipedon
  • parent compound — a compound from which derivatives may be obtained.
  • partial product — the result obtained when a number is multiplied by one digit of a multiplier
  • passport holder — a person who has a passport
  • pastel-coloured — pale-coloured; in a shade such as pink or pale blue
  • paternity order — a court order which declares a child's paternity
  • peak production — the maximum production
  • pectoral girdle — (in vertebrates) a bony or cartilaginous arch supporting the forelimbs.
  • pelargonic acid — a colorless, oily, water-immiscible liquid, C 9 H 1 8 O 2 , occurring as an ester in a volatile oil in species of pelargonium: used chiefly in organic synthesis and in the manufacture of lacquers and plastics.
  • penetration aid — a device or tactic, as the use of chaff or decoys or the maintaining of a low flight level, that helps an aircraft or missile to enter hostile air space.
  • perchloric acid — a colorless, syrupy hygroscopic liquid, HClO 4 , an acid of chlorine containing one more oxygen atom than chloric acid: used chiefly as a reagent in analytical chemistry.
  • period-rotation — a rather large interval of time that is meaningful in the life of a person, in history, etc., because of its particular characteristics: a period of illness; a period of great profitability for a company; a period of social unrest in Germany.
  • personal friend — a person who is a friend, rather than a colleague or acquaintance
  • phenazopyridine — a substance, C 1 1 H 1 2 ClN 5 , used as a lower urinary tract analgesic.
  • phonocardiogram — the graphic record produced by a phonocardiograph.
  • phosphoric acid — any of three acids, orthophosphoric acid, H 3 PO 4 , metaphosphoric acid, HPO 3 , or pyrophosphoric acid, H 4 P 2 O 7 , derived from phosphorus pentoxide, P 2 O 5 , and various amounts of water.
  • photodegradable — (of a substance) capable of being broken down by light.
  • piano accordion — accordion (def 1).
  • piano reduction — a musical score having the parts condensed or simplified in two staves, to render the music playable on the piano by one person.
  • polychlorinated — having multiple chlorine atoms
  • polyunsaturated — of or noting a class of animal or vegetable fats, especially plant oils, whose molecules consist of carbon chains with many double bonds unsaturated by hydrogen atoms and that are associated with a low cholesterol content of the blood.
  • portland cement — a type of hydraulic cement usually made by burning a mixture of limestone and clay in a kiln.
  • post-industrial — of, relating to, or characteristic of an era following industrialization: The economy of the postindustrial society is based on the provision of services rather than on the manufacture of goods.
  • postirradiation — occurring after or due to irradiation
  • potash feldspar — any of the feldspar minerals having the composition KAlSi 3 O 8 , as orthoclase.
  • pound one's ear — to sleep
  • powder magazine — a compartment for the storage of ammunition and explosives.
  • power save mode — (architecture)   A feature of a component or subsystem designed to actively reduce its power consumption when not in use. Almost any electronic device might benefit from having a power save mode but the most common application is for portable computers which attempt to conserve battery life by incorporating power saving modes in the CPU, display, disks, printer, or other units.
  • prairie-dogging — (in an open-plan office) the practice of looking over the top of one's partition in order to discover the source of or reason for a commotion
  • pre-deprivation — the act of depriving.
  • predicate logic — (logic)   (Or "predicate calculus") An extension of propositional logic with separate symbols for predicates, subjects, and quantifiers. For example, where propositional logic might assign a single symbol P to the proposition "All men are mortal", predicate logic can define the predicate M(x) which asserts that the subject, x, is mortal and bind x with the universal quantifier ("For all"): All x . M(x) Higher-order predicate logic allows predicates to be the subjects of other predicates.
  • premodification — an act or instance of modifying.
  • prestidigitator — sleight of hand; legerdemain.
  • primary product — a product consisting of a natural raw material; an unmanufactured product
  • primo de rivera — Miguel [mee-gel] /miˈgɛl/ (Show IPA), Marqués de Estella [mahr-kes th e es-te-lyah] /mɑrˈkɛs ðɛ ɛsˈtɛ lyɑ/ (Show IPA), (Miguel Prima de Rivera y Orbaneja) 1870–1930, Spanish general and political leader: dictator of Spain 1923–29.
  • primordial soup — the seas and atmosphere as they existed on earth before the existence of life, consisting primarily of an oxygen-free gaseous mixture containing chiefly water, hydrogen, methane, ammonia, and carbon dioxide.
  • private soldier — A private soldier is a soldier of the lowest rank in an army or the marines.
  • privately owned — owned by a private individual or organization, rather than by the state or a public body
  • pro-confederate — united in a league, alliance, or conspiracy.
  • probation order — an order imposed by a magistrate or judge under which an offender is sentenced to probation rather than imprisonment
  • procrustean bed — a plan or scheme to produce uniformity or conformity by arbitrary or violent methods.
  • product manager — sb who oversees product development
  • profit and loss — the gain and loss arising from commercial or other transactions, applied especially to an account or statement of account in bookkeeping showing gains and losses in business.
  • profoundly deaf — unable to hear any sound below 95 decibels in one's better ear
  • program trading — trading on international stock exchanges using a computer program to exploit differences between stock index futures and actual share prices on world equity markets
  • proletarianized — to convert or transform into a member or members of the proletariat: to proletarianize the middle class.
  • promotion board — group that markets or advertises sth
  • property ladder — progress from cheaper to more expensive housing
  • propionaldehyde — a colorless, water-soluble liquid, C 3 H 6 O, having a pungent odor: used chiefly in the manufacture of plastics.
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