15-letter words containing r, a, d, i, o, p
- 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.
- 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
- 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
- powder magazine — a compartment for the storage of ammunition and explosives.
- 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
- probation order — an order imposed by a magistrate or judge under which an offender is sentenced to probation rather than imprisonment
- 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.
- 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
- propionaldehyde — a colorless, water-soluble liquid, C 3 H 6 O, having a pungent odor: used chiefly in the manufacture of plastics.
- pseudepigraphon — any book of the Pseudepigrapha
- pseudo-artistic — conforming to the standards of art; satisfying aesthetic requirements: artistic productions.
- pseudo-critical — inclined to find fault or to judge with severity, often too readily.
- pseudo-dramatic — of or relating to the drama.
- pseudo-military — of, for, or pertaining to the army or armed forces, often as distinguished from the navy: from civilian to military life.
- pseudo-romantic — of, relating to, or of the nature of romance; characteristic or suggestive of the world of romance: a romantic adventure.
- pseudoarthrosis — a joint formed by fibrous tissue bridging the gap between the two fragments of bone of an old fracture that have not united
- pseudoparalysis — the inability to move a part of the body owing to factors, as pain, other than those causing actual paralysis.
- pseudotripteral — having an arrangement of columns suggesting a tripteral structure but without the inner colonnades.
- pyrogallic acid — pyrogallol
- pyrogallic-acid — a white, crystalline, water-soluble, poisonous, solid, phenolic compound, C 6 H 3 (OH) 3 , obtained by heating gallic acid and water: used chiefly as a developer in photography, as a mordant for wool, in dyeing, and in medicine in the treatment of certain skin conditions.
- pyrometric bead — (in a kiln) a ball of material that indicates by changing color that a certain temperature has been reached.
- quadripartition — A division into four parts.
- quadruplication — one of four copies or identical items, especially copies of typewritten material.
- rack-and-pinion — of or relating to a mechanism in which a rack engages a pinion: rack-and-pinion steering.
- radio programme — something that is broadcast on radio
- radio telephone — A radio telephone is a telephone which carries sound by sending radio signals rather than by using wires. Radio telephones are often used in cars.
- radio telescope — a system consisting of an antenna, either parabolic or dipolar, used to gather radio waves emitted by celestial sources and bring them to a receiver placed in the focus.
- radio-telephone — a telephone in which sound or speech is transmitted by means of radio waves instead of through wires or cables.
- radioautography — autoradiography.