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16-letter words containing t, a, o, u

  • on the up-and-up — to, toward, or in a more elevated position: to climb up to the top of a ladder.
  • onboard computer — onboard a vehicle, ship, plane, train or spacecraft
  • once upon a time — at one time in the past; formerly: I was a farmer once; a once powerful nation.
  • one's cup of tea — the dried and prepared leaves of a shrub, Camellia sinensis, from which a somewhat bitter, aromatic beverage is prepared by infusion in hot water.
  • one-way function — (cryptography, mathematics)   A function which is easy to compute but whose inverse is very difficult to compute. Such functions have important applications in cryptography, specifically in public-key cryptography. See also: trapdoor function.
  • oneida community — a society of religious perfectionists established by John Humphrey Noyes, in 1848 at Oneida, N.Y., on the theory that sin can be eliminated through social reform: dissolved and reorganized in 1881 as a joint-stock company.
  • online thesaurus — a thesaurus or dictionary of words with the same or nearly the same meanings, or synonyms, and their opposites, or antonyms, such as Thesaurus.com, available on the Internet or the World Wide Web, accessed through a web browser, and used by entering a query term into a search box on the site. An online thesaurus provides immediate electronic access to lists of alternate terms for the queried word, covering its various shades of meaning: This online thesaurus showed me that smart, as an adjective, not only means intelligent, but also stylish, or lively, and gave long lists of other words for each meaning.
  • opaque projector — a machine for projecting opaque objects, as books, on a screen, by means of reflected light.
  • open punctuation — punctuation characterized by sparing use of stops, esp of the comma
  • operating budget — money allocated to a project
  • operating manual — a leaflet of instructions on how to use something (such as an electrical appliance, etc)
  • optical computer — an experimental computer that uses photons rather than electrical impulses to process data a thousand times faster than with conventional integrated circuits.
  • optical illusion — something that deceives by producing a false or misleading impression of reality.
  • orthodox judaism — Judaism as observed by Orthodox Jews.
  • orthodoxy sunday — a solemn festival held on the first Sunday of Lent (Orthodoxy Sunday) commemorating the restoration of the use of icons in the church (a.d. 842) and the triumph over all heresies.
  • osculating plane — the plane containing the circle of curvature of a point on a given curve.
  • ostentatiousness — characterized by or given to pretentious or conspicuous show in an attempt to impress others: an ostentatious dresser.
  • out like a light — If someone goes out like a light, they fall asleep or become unconscious very quickly or immediately.
  • out of character — the aggregate of features and traits that form the individual nature of some person or thing.
  • out on one's ear — dismissed unceremoniously
  • outboard profile — an exterior side elevation of a vessel, showing all deck structures, rigging, fittings, etc.
  • outsmart oneself — to have one's efforts at cunning or cleverness result in one's own disadvantage
  • over-communicate — to impart knowledge of; make known: to communicate information; to communicate one's happiness.
  • over-cultivation — the act or art of cultivating.
  • over-speculation — the contemplation or consideration of some subject: to engage in speculation on humanity's ultimate destiny.
  • overaccumulation — Accumulation of too much.
  • overcautiousness — the quality or state of being too cautious, wary, or careful
  • overenthusiastic — full of or characterized by enthusiasm; ardent: He seems very enthusiastic about his role in the play.
  • overurbanization — the act or fact of urbanizing, or taking on the characteristics of a city: Urbanization has led to more air pollution and increasing childhood asthma.
  • oxidation number — the state of an element or ion in a compound with regard to the electrons gained or lost by the element or ion in the reaction that formed the compound, expressed as a positive or negative number indicating the ionic charge of the element or ion.
  • oxycalcium light — calcium light.
  • pacific sturgeon — a dark gray sturgeon, Acipenser transmontanus, inhabiting marine and fresh waters along the northwestern coast of North America, valued as a food and sport fish.
  • pairs tournament — an event in a sport such as tennis or darts open to pairs of competitors
  • palmtop computer — a computer that has a small screen and compressed keyboard and is small enough to be held in the hand, often used as a personal organizer
  • palomar mountain — mountain in SW Calif., near San Diego: site of an astronomical observatory: 6,140 ft (1,871 m)
  • paratuberculosis — Johne's disease.
  • part way through — mid-way; before the end
  • partial function — A function which is not defined for all arguments of its input type. E.g. f(x) = 1/x if x /= 0. The opposite of a total function. In denotational semantics, a partial function f : D -> C may be represented as a total function ft : D' -> lift(C) where D' is a superset of D and ft x = f x if x in D ft x = bottom otherwise where lift(C) = C U bottom. Bottom (LaTeX \perp) denotes "undefined".
  • paterson's curse — a purple-flowered noxious plant, Echium plantagineum, a close relative of viper's bugloss, naturalized in Australia and NZ where its harmfulness to livestock has prompted attempts to limit its spread
  • pay-as-you-throw — denoting a system for waste collection in which households are charged according to the amount of refuse they leave
  • pentothal sodium — thiopental sodium
  • perforated ulcer — an ulcer that bursts through the stomach wall and leaks food and gastric juices into the abdominal cavity
  • perpetual motion — the motion of a theoretical mechanism that, without any losses due to friction or other forms of dissipation of energy, would continue to operate indefinitely at the same rate without any external energy being applied to it.
  • personal tuition — private tuition
  • personality cult — deliberately cultivated adulation of a person, esp a political leader
  • phase modulation — radio transmission in which the carrier wave is modulated by changing its phase to transmit the amplitude and pitch of the signal.
  • phosphor fatigue — screen saver
  • photoautotrophic — any organism that derives its energy for food synthesis from light and is capable of using carbon dioxide as its principal source of carbon.
  • photocoagulation — a surgical technique using an intense beam of light from a laser or a xenon-arc bulb to seal blood vessels or coagulate tissue, used primarily in ophthalmology to repair detached retinas or to treat certain kinds of retinopathy.
  • photograph album — bound book for photos
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