15-letter words containing p, o, u, n
- notour bankrupt — a bankrupt who has failed to discharge his or her debts within the days of grace allowed by the court
- nuclear-powered — powered by nuclear energy
- nucleophilicity — (uncountable) The condition of being nucleophilic.
- null hypothesis — (in the statistical testing of a hypothesis) the hypothesis to be tested.
- nullarbor plain — a treeless, semiarid area of S Australia, contiguous to the Great Australian Bight.
- nutty professor — a professor or academic person who is eccentric or slightly crazy or unusual
- odd permutation — a permutation of a set of n elements, x 1 , x 2 , …, xn, which permutes the product of all differences of the form (xi – xj), where i is less than j, into the negative of the product.
- off one's chump — insane; crazy
- on one's uppers — higher, as in place, position, pitch, or in a scale: the upper stories of a house; the upper register of a singer's voice.
- one-two (punch) — a sequence of two quick punches, esp. a jab with the left hand followed at once by a hard blow with the right
- open university — higher education by correspondence
- open your mouth — If you say that someone does not open their mouth, you are emphasizing that they never say anything at all.
- open-cut mining — mining by excavating from the surface
- openmouthedness — the state or condition of being filled with amazement and wonder
- opisthognathous — having receding jaws.
- opposite number — counterpart; equivalent: New members with an interest in folk art will find their opposite numbers in the association's directory.
- opprobriousness — The state or condition of being opprobrious.
- optical pumping — a method for increasing the number of atoms or molecules occupying higher energy levels by irradiating them with light of the proper frequencies to raise them to those levels.
- opus anglicanum — fine embroidery, esp of church vestments, produced in England c.1200–c.1350; characterized by the rich materials used, esp silver gilt thread
- ordered n-tuple — a set of n objects or quantities, where n is an integer, especially such a set arranged in a specified order (ordered n-tuple)
- out in the open — knowledge: public
- outdoorsmanship — a person devoted to outdoor sports and recreational activities, as hiking, hunting, fishing, or camping.
- over-population — to fill with an excessive number of people, straining available resources and facilities: Expanding industry has overpopulated the western suburbs.
- overconsumption — the act of consuming, as by use, decay, or destruction.
- overexpenditure — the act of expending something, especially funds; disbursement; consumption.
- overspeculation — the contemplation or consideration of some subject: to engage in speculation on humanity's ultimate destiny.
- oxyphenbutazone — an anti-inflammatory treatment for arthritis or bursitis
- pair production — Physics. the simultaneous creation of a particle and its antiparticle by a nucleus or particle in an excited state, as when a photon is absorbed.
- pandorae fretum — an area in the southern hemisphere of Mars.
- parallel cousin — a cousin who is the child either of one's mother's sister or of one's father's brother.
- parent compound — a compound from which derivatives may be obtained.
- part of fortune — the celestial longitude of the moon plus the celestial longitude of the ascendant minus the celestial longitude of the sun: said to connote an area of life through which one achieves emotional satisfaction.
- past continuous — past progressive.
- patio furniture — furniture in an area adjoining a house, esp one that is paved and used for outdoor activities
- pay as you earn — a method of paying tax in which the tax is taken off your wages before they are paid to you
- peak production — the maximum production
- pedagoguishness — the quality of being pedagoguish
- pedunculate oak — a large deciduous oak tree, Quercus robur, of Eurasia, having lobed leaves and stalked acorns
- pentium ii xeon — (processor) The successor to Intel Corporation's Pentium II processor. The Xeon has the same P6 core as existing Pentium Pro/Pentium II units, but it supports a 100 MHz system bus and offers as much as 2 MB of level 2 cache.
- percussion lock — a gunlock on a firearm that fires by striking a percussion cap.
- percussion tool — a power driven tool which operates by striking rapid blows: the power may be electricity or compressed air
- perfluorocarbon — a fluorocarbon consisting only of fluorine and carbon atoms
- perforating gun — A perforating gun is a device used to make holes in oil and gas wells in preparation for production.
- perfunctoriness — performed merely as a routine duty; hasty and superficial: perfunctory courtesy.
- pergamentaceous — (esp of plants) resembling parchment, whether in texture or composition
- personal column — The personal column in a newspaper or magazine contains messages for individual people and advertisements of a private nature.
- personal injury — injury to an individual
- phantom circuit — a circuit derived from two suitably arranged pairs of wires, each pair being a circuit (side circuit) and also acting as one half of an additional derived circuit, the entire system providing the capabilities of three circuits while requiring wires for only two.
- pheasant coucal — a brown and black, red-eyed Australian bird, Centropus phasianinus, with a pheasantlike tail.
- phenylene group — any of three bivalent, isomeric groups having the formula –C 6 H 4 –, derived from benzene by the removal of two hydrogen atoms.