15-letter words containing o, u, t, r, n, e
- 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.
- obstructiveness — The characteristic of being obstructive.
- obtuse triangle — a triangle with one obtuse angle.
- octanitrocubane — (organic compound) A high explosive derived from cubane.
- 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.
- okhotsk current — a cold ocean current flowing SW from the Bering Sea, E of the Kurile Islands, along the E coast of Japan where it meets the Japan Current.
- omnium gatherum — a miscellaneous collection.
- omnium-gatherum — a miscellaneous collection.
- one's last hour — the time of one's death
- 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.
- opposite number — counterpart; equivalent: New members with an interest in folk art will find their opposite numbers in the association's directory.
- 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)
- ortho-toluidine — Chemistry. a light-yellow, very slightly water-soluble liquid, C 7 H 9 N, the ortho isomer of toluidine: used in the manufacture of dyes, saccharin, and other organic compounds, and in textile printing processes.
- out on your ear — If someone says that you will be out on your ear, they mean that you will be forced to leave a job, an organization or a place suddenly.
- outline drawing — a drawing consisting only of external lines
- outward journey — a journey leaving for a particular destination (as opposed top one returning home)
- over-accentuate — to give emphasis or prominence to.
- over-enthusiasm — absorbing or controlling possession of the mind by any interest or pursuit; lively interest: He shows marked enthusiasm for his studies.
- over-population — to fill with an excessive number of people, straining available resources and facilities: Expanding industry has overpopulated the western suburbs.
- over-regulation — a law, rule, or other order prescribed by authority, especially to regulate conduct.
- overcommunicate — to communicate excessively
- overconsumption — the act of consuming, as by use, decay, or destruction.
- overcultivation — the act or art of cultivating.
- 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.
- overstimulation — to rouse to action or effort, as by encouragement or pressure; spur on; incite: to stimulate his interest in mathematics.
- overutilization — to put to use; turn to profitable account: to utilize a stream to power a mill.
- pandorae fretum — an area in the southern hemisphere of Mars.
- 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.
- patio furniture — furniture in an area adjoining a house, esp one that is paved and used for outdoor activities
- peak production — the maximum production
- percussion tool — a power driven tool which operates by striking rapid blows: the power may be electricity or compressed air
- 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
- phenylketonuria — an inherited disease due to faulty metabolism of phenylalanine, characterized by phenylketones in the urine and usually first noted by signs of mental retardation in infancy.
- phenylketonuric — an inherited disease due to faulty metabolism of phenylalanine, characterized by phenylketones in the urine and usually first noted by signs of mental retardation in infancy.
- 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.
- pierrot lunaire — a cycle of 21 songs (1912) for voice and instruments, by Arnold Schönberg, written in Sprechgesang style and set to poems of Albert Giraud in German translation.
- pinochet ugarte — Augusto [ou-goos-taw] /aʊˈgus tɔ/ (Show IPA), 1915–2006, Chilean army general and political leader: president 1973–90.
- pithecanthropus — a former genus of extinct hominids whose members have now been assigned to the proposed species Homo erectus.
- plastic surgeon — doctor who performs cosmetic surgery
- pneumatotherapy — the use of compressed or rarefied air in treating disease.
- 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.
- post-parturient — bearing or about to bear young; travailing.
- post-revolution — an overthrow or repudiation and the thorough replacement of an established government or political system by the people governed.
- pre-acquisition — the act of acquiring or gaining possession: the acquisition of real estate.
- pre-consumption — the act of consuming, as by use, decay, or destruction.