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15-letter words containing n, o, t, m

  • nothingarianism — Beliefs and practices of a nothingarian.
  • nottinghamshire — a county in central England. 854 sq. mi. (2210 sq. km).
  • numismatologist — One versed in numismatology.
  • 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
  • ocean of storms — the largest of the dark plains (maria) on the surface of the moon, situated in the second and third quadrant
  • 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.
  • odontostomatous — having jaws that resemble teeth
  • old clothes man — a person who deals in second-hand clothes
  • old-man-the-sea — (in The Arabian Nights' Entertainments) an old man who clung to the shoulders of Sindbad the Sailor for many days and nights.
  • oligomerisation — Alternative spelling of oligomerization.
  • oligomerization — (chemistry) The formation of an oligomer from a monomer.
  • omnibus edition — a television or radio programme consisting of two or more programmes broadcast earlier in the week
  • omnidirectional — sending or receiving signals in all directions: an omnidirectional microphone.
  • omnium gatherum — a miscellaneous collection.
  • omnium-gatherum — a miscellaneous collection.
  • on one's mettle — roused to putting forth one's best efforts
  • on/off the mark — If something is off the mark, it is inaccurate or incorrect. If it is on the mark, it is accurate or correct.
  • oneirocriticism — the art of interpreting dreams.
  • ones complement — A system used in some computers to represent negative numbers. To negate a number, each bit of the number is inverted (zeros are replaced with ones and vice versa). This has the consequence that there are two reperesentations for zero, either all zeros or all ones. ... 000...00011 = +3 000...00010 = +2 000...00001 = +1 000...00000 = +0 111...11111 = -0 111...11110 = -1 111...11101 = -2 111...11100 = -3 ... Naive logic for ones complement addition might easily conclude that -0 + 1 = +0. The twos complement avoids this by using all ones to represent -1.
  • open enrollment — open admissions.
  • open government — the doctrine that all government business should be open to regulation and scrutiny by the public
  • 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
  • open-pit mining — a method of mining, usually for metallic ores, in which the waste and ore are completely removed from the sides and bottom of a pit which gradually becomes an enormous canyonlike hole
  • opencast mining — mining by excavating from the surface
  • opening batsman — a player who bats the first ball in cricket
  • openmouthedness — the state or condition of being filled with amazement and wonder
  • operations room — a room from which all the operations of a military, police, or other disciplined activity are controlled
  • 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.
  • outdoorsmanship — a person devoted to outdoor sports and recreational activities, as hiking, hunting, fishing, or camping.
  • over-assessment — too much assessment
  • over-compensate — to compensate or reward excessively; overpay: Some stockholders feel the executives are being overcompensated and that bonuses should be reduced.
  • over-enthusiasm — absorbing or controlling possession of the mind by any interest or pursuit; lively interest: He shows marked enthusiasm for his studies.
  • over-estimation — to estimate at too high a value, amount, rate, or the like: Don't overestimate the car's trade-in value.
  • over-excitement — to excite too much.
  • overachievement — to perform, especially academically, above the potential indicated by tests of one's mental ability or aptitude.
  • overcommunicate — to communicate excessively
  • overcompensated — to compensate or reward excessively; overpay: Some stockholders feel the executives are being overcompensated and that bonuses should be reduced.
  • overcompensates — Third-person singular simple present indicative form of overcompensate.
  • overconsumption — the act of consuming, as by use, decay, or destruction.
  • overdevelopment — Excessive development; the state or quality of being overdeveloped.
  • overdramatizing — Present participle of overdramatize.
  • overemotionally — In an overemotional manner.
  • overimaginative — imaginative to a fault
  • overstimulation — to rouse to action or effort, as by encouragement or pressure; spur on; incite: to stimulate his interest in mathematics.
  • oxford movement — the movement toward High Church principles within the Church of England, originating at Oxford University in 1833 in opposition to liberalizing, rationalizing, and evangelical tendencies and emphasizing the principles of primitive and patristic Christianity as well as the historic and catholic character of the church.
  • ozark mountains — an eroded plateau in S Missouri, N Arkansas, and NE Oklahoma. Area: about 130 000 sq km (50 000 sq miles)
  • palaeomagnetism — the study of the fossil magnetism in rocks, used to determine the past configurations of the continents and to investigate the past shape and magnitude of the earth's magnetic field
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