15-letter words containing n, o, s, t, r, a
- towers of hanoi — (games) A classic computer science problem, invented by Edouard Lucas in 1883, often used as an example of recursion. "In the great temple at Benares, says he, beneath the dome which marks the centre of the world, rests a brass plate in which are fixed three diamond needles, each a cubit high and as thick as the body of a bee. On one of these needles, at the creation, God placed sixty-four discs of pure gold, the largest disc resting on the brass plate, and the others getting smaller and smaller up to the top one. This is the Tower of Bramah. Day and night unceasingly the priests transfer the discs from one diamond needle to another according to the fixed and immutable laws of Bramah, which require that the priest on duty must not move more than one disc at a time and that he must place this disc on a needle so that there is no smaller disc below it. When the sixty-four discs shall have been thus transferred from the needle on which at the creation God placed them to one of the other needles, tower, temple, and Brahmins alike will crumble into dust, and with a thunderclap the world will vanish." The recursive solution is: Solve for n-1 discs recursively, then move the remaining largest disc to the free needle. Note that there is also a non-recursive solution: On odd-numbered moves, move the smallest sized disk clockwise. On even-numbered moves, make the single other move which is possible.
- trading profits — profits made from the buying and selling of goods and services
- training course — practical programme of study
- training school — a school that provides training in some art, profession, or vocation.
- trainspotterish — obsessed with trivial details, esp of a subject generally considered uninteresting
- trans-jordanian — of or relating to the former Trans-Jordan (now Jordan) or its inhabitants
- transactionally — the act of transacting or the fact of being transacted.
- transequatorial — of, relating to, or near an equator, especially the equator of the earth.
- transfer factor — a lymphocyte product that, when extracted from T cells of an individual with immunity to a particular antigen, can confer that immunity when administered to another individual of the same species.
- transfer lounge — the place in an airport where you wait for a transfer from one flight to another
- transfer season — the period during the year in which a football club can transfer players from other teams into their own
- transfer window — the period during the year in which a football club can transfer players from other teams into their own
- transfiguration — the act of transfiguring.
- transform fault — a strike-slip fault that offsets a mid-ocean ridge in opposing directions on either side of an axis of seafloor spreading.
- transgressional — of or relating to transgression
- transhistorical — occurring throughout all human history
- transition team — a group of people who manage the transition between one system, administrative regime, etc and another
- translationally — in a manner which uses translation
- transliteration — to change (letters, words, etc.) into corresponding characters of another alphabet or language: to transliterate the Greek Χ as ch.
- transmissometer — an instrument for measuring visibility or the transmission of light in the atmosphere.
- transnationally — going beyond national boundaries or interests: a transnational economy.
- transplantation — to remove (a plant) from one place and plant it in another.
- transportedness — the quality or state of being carried away with pleasure or rapture
- tree of sadness — night jasmine (def 1).
- trojan asteroid — one of a number of asteroids that have the same mean motion and orbit as Jupiter, preceding or following the planet by a longitude of 60°
- trout fisherman — a fisherman who catches trout
- trypanosomiasis — any infection caused by a trypanosome.
- turbinate bones — the thin scroll-shaped bones situated on the walls of the nasal passages
- twist one's arm — to combine, as two or more strands or threads, by winding together; intertwine.
- ultra-modernist — very advanced in ideas, design, or techniques.
- ultrasonography — a diagnostic imaging technique utilizing reflected high-frequency sound waves to delineate, measure, or examine internal body structures or organs.
- ultrasound scan — sonograph examination
- unadventurously — in an unadventurous manner
- unconstrainable — unable to be confined
- unconstrainedly — in an unconfined manner
- uncontrollables — incapable of being controlled or restrained: uncontrollable anger.
- uncontroversial — of, relating to, or characteristic of controversy, or prolonged public dispute, debate, or contention; polemical: a controversial book.
- undemonstrative — not given to open exhibition or expression of emotion, especially of affection.
- under one's hat — a shaped covering for the head, usually with a crown and brim, especially for wear outdoors.
- undercompensate — to compensate or pay less than is fair, customary, or expected.
- underestimation — to estimate at too low a value, rate, or the like.
- universal joint — piece that couples two rotating shafts
- universal motor — a series-wound motor, of one-half horsepower or less, using alternating or direct current.
- unprotestantize — to make something (e.g. a church, country, etc) a religion other than Protestant
- unseaworthiness — constructed, outfitted, manned, and in all respects fitted for a voyage at sea.
- unsportsmanlike — a man who engages in sports, especially in some open-air sport, as hunting, fishing, racing, etc.
- ust-kamenogorsk — a city in E Kazakhstan, on the Irtysh River.
- vacation course — a course of study undertaken during a vacation, usually combined with other activities
- vascularization — (of a tissue or embryo) to develop or extend blood vessels or other fluid-bearing vessels or ducts; become vascular.
- vasoconstrictor — a nerve or drug that causes vasoconstriction.