15-letter words containing p, e, d, i
- pectoral girdle — (in vertebrates) a bony or cartilaginous arch supporting the forelimbs.
- pedagoguishness — the quality of being pedagoguish
- pedestrian mall — A pedestrian mall is the same as a pedestrian precinct.
- 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.
- penal servitude — imprisonment together with hard labor.
- 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.
- perfect binding — a technique for binding books by a machine that cuts off the backs of the sections and glues the leaves to a cloth or paper backing.
- 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.
- periodic motion — any motion that recurs in identical forms at equal intervals of time.
- periodic system — a system of classification of the elements based on the periodic law.
- peroxide blonde — You can refer to a woman whose hair has been artificially been made lighter in colour as a peroxide blonde, especially when you want to show that you disapprove of this, or that you think her hair looks unnatural or unattractive.
- perpendicularly — vertical; straight up and down; upright.
- 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.
- phenylhydrazine — a yellow, poisonous liquid or low-melting solid, C 6 H 8 N 2 , used in chemical analysis and organic synthesis.
- philip the bold — 1342–1404, duke of Burgundy (1363–1404), noted for his courage at Poitiers (1356) in the Hundred Years' War: regent of France for his nephew Charles VI (1368–88, 1392–1404)
- philip the good — 1396–1467, duke of Burgundy 1419–67.
- phoenix islands — a group of eight coral islands in the central Pacific: administratively part of Kiribati. Area: 28 sq km (11 sq miles). The islands and surrounding waters form the Phoenix Islands Protected Area, the world's largest marine protected area. Area: 410 500 sq km (158 500 sq miles)
- photoconductive — of, relating to, or exhibiting photoconductivity.
- photodissociate — to split or break up molecules as a result of the absorption of photons
- phototheodolite — an optical tracking instrument consisting of a camera and theodolite mounted on a single tripod, used in photogrammetry and in tracking rockets.
- 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.
- pick and choose — to choose or select from among a group: to pick a contestant from the audience.
- pick-and-shovel — marked by drudgery; laborious: the pick-and-shovel work necessary to get a political campaign underway.
- pied flycatcher — a small black and white migratory bird of Europe and western Asia, Ficedula hypoleuca
- piero di cosimo — Piero di [pee-air-oh di;; Italian pye-raw dee] /piˈɛər oʊ dɪ;; Italian ˈpyɛ rɔ di/ (Show IPA), Piero di Cosimo.
- pine leaf aphid — any of various homopterous insects of the family Adelgidae, as Adelges abietis (spruce gall aphid) and Pineus pinifoliae (pine leaf aphid) that feed and form galls on conifers.
- platinum blonde — a person, especially a girl or woman, whose hair is of a pale blond or silver color, usually colored artificially by bleaching or dyeing.
- pleasant island — former name of Nauru.
- plumbers-friend — Machinery. a pistonlike reciprocating part moving within the cylinder of a pump or hydraulic device.
- pneumatic drill — a percussive power drill powered by compressed air
- point d'alencon — Alençon lace (def 1).
- pointing device — an input device, as a mouse, stylus, or joystick, used to control movement of a cursor or pointer.
- polychlorinated — having multiple chlorine atoms
- post-depression — the act of depressing.
- post-tridentine — of or relating to the city of Trent.
- postdevaluation — the period following the devaluation of a currency
- postdivestiture — taking place after divestiture
- posthole digger — a tool or device for digging a posthole.
- pot-bellied pig — A pot-bellied pig is a small, dark-colored pig, originally from Vietnam, that is sometimes kept as a pet.
- povidone-iodine — a complex of iodine and polyvinylpyrrolidone that has broad-spectrum antimicrobial activity: used as an antiseptic.
- 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-advertising — to announce or praise (a product, service, etc.) in some public medium of communication in order to induce people to buy or use it: to advertise a new brand of toothpaste.
- pre-delinquency — failure in or neglect of duty or obligation; dereliction; default: delinquency in payment of dues.
- pre-deprivation — the act of depriving.
- pre-established — to establish beforehand.
- predeterminable — able to be predetermined; able to be determined in advance
- 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.