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15-letter words containing m, u, n, i

  • nutmeg geranium — a southern African plant, Pelargonium fragrans, of the geranium family, having hairy leaves with scalloped margins and nutmeg-scented clusters of white flowers, of which the two upper petals are veined deep pink.
  • nyquist theorem — (communications)   A theorem stating that when an analogue waveform is digitised, only the frequencies in the waveform below half the sampling frequency will be recorded. In order to reconstruct (interpolate) a signal from a sequence of samples, sufficient samples must be recorded to capture the peaks and troughs of the original waveform. If a waveform is sampled at less than twice its frequency the reconstructed waveform will effectively contribute only noise. This phenomenon is called "aliasing" (the high frequencies are "under an alias"). This is why the best digital audio is sampled at 44,000 Hz - twice the average upper limit of human hearing. The Nyquist Theorem is not specific to digitised signals (represented by discrete amplitude levels) but applies to any sampled signal (represented by discrete time values), not just sound.
  • obituary column — the division of a publication reserved for obituaries
  • 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.
  • omnibus edition — a television or radio programme consisting of two or more programmes broadcast earlier in the week
  • omnium gatherum — a miscellaneous collection.
  • omnium-gatherum — a miscellaneous collection.
  • open-cut mining — mining by excavating from the surface
  • opposite number — counterpart; equivalent: New members with an interest in folk art will find their opposite numbers in the association's directory.
  • 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
  • ordinal numbers — Also called ordinal numeral. any of the numbers that express degree, quality, or position in a series, as first, second, and third (distinguished from cardinal number).
  • organomagnesium — pertaining to or noting an organic compound, especially an organic halide, containing magnesium linked to carbon.
  • organomercurial — an organic compound containing mercury
  • outdoorsmanship — a person devoted to outdoor sports and recreational activities, as hiking, hunting, fishing, or camping.
  • over-enthusiasm — absorbing or controlling possession of the mind by any interest or pursuit; lively interest: He shows marked enthusiasm for his studies.
  • overcommunicate — to communicate excessively
  • overconsumption — the act of consuming, as by use, decay, or destruction.
  • overstimulation — to rouse to action or effort, as by encouragement or pressure; spur on; incite: to stimulate his interest in mathematics.
  • ozark mountains — an eroded plateau in S Missouri, N Arkansas, and NE Oklahoma. Area: about 130 000 sq km (50 000 sq miles)
  • 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.
  • peruvian balsam — Peru balsam.
  • 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.
  • photojournalism — journalism in which photography dominates written copy, as in certain magazines.
  • picture element — (graphics)   (pixel) The smallest resolvable rectangular area of an image, either on a screen or stored in memory. Each pixel in a monochrome image has its own brightness, from 0 for black to the maximum value (e.g. 255 for an eight-bit pixel) for white. In a colour image, each pixel has its own brightness and colour, usually represented as a triple of red, green and blue intensities (see RGB). Compare voxel.
  • picture-framing — the job of framing photos, paintings etc
  • 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.
  • pleuropneumonia — pleurisy conjoined with pneumonia.
  • plumbaginaceous — belonging to the Plumbaginaceae, the leadwort family of plants.
  • 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
  • positive column — the luminous region between the Faraday dark space and the anode glow in a vacuum tube, occurring when the pressure is low.
  • poststimulation — occurring after stimulation
  • poultry farming — breeding and keeping fowl
  • pre-consumption — the act of consuming, as by use, decay, or destruction.
  • premier danseur — the leading male dancer in a ballet company.
  • prerequirements — that which is required; a thing demanded or obligatory: One of the requirements of the job is accuracy.
  • primary insurer — A primary insurer is the insurance company that first sells insurance to a client, who later purchases reinsurance.
  • prism binocular — Usually, prism binoculars. Optics. binocular (def 1).
  • proscenium arch — the arch separating the stage from the auditorium
  • protonephridium — a tubular, excretory structure in certain invertebrates, as flatworms, rotifers, and some larvae, usually ending internally in flame cells and having an external pore
  • pseudo-bohemian — living a wandering or vagabond life, as a Gypsy.
  • pseudo-romantic — of, relating to, or of the nature of romance; characteristic or suggestive of the world of romance: a romantic adventure.
  • pullman kitchen — a kitchenette, often recessed into a wall and concealed by double doors or a screen.
  • pulmobranchiate — possessing a pulmobranch
  • pure and simple — sheer, utter
  • purslane family — the plant family Portulacaceae, characterized by chiefly herbaceous plants having simple, often fleshy leaves, sometimes showy flowers, and capsular fruit, and including bitterroot, purslane, red maids, rose moss, and spring beauty.
  • pusillanimously — lacking courage or resolution; cowardly; faint-hearted; timid.
  • qualifying exam — any examination that one needs to pass in order to begin or continue with a course of study
  • quantum gravity — a theory of the gravitational interaction that involves quantum mechanics to explain the force
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