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15-letter words containing a, n, t, w, r

  • to draw a blank — If you draw a blank when you are looking for someone or something, you do not succeed in finding them.
  • tomato hornworm — the larva of a hawk moth, Manduca quinquemaculata, having a black, hornlike structure at the rear, that feeds on the leaves of tomato, potato, and other plants of the nightshade family.
  • 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.
  • training wheels — a pair of small wheels attached one on each side of the rear wheel of a bicycle for stability while one is learning to ride.
  • transfer window — the period during the year in which a football club can transfer players from other teams into their own
  • transverse wave — a wave in which the direction of displacement is perpendicular to the direction of propagation, as a surface wave of water.
  • travelling wave — a wave carrying energy away from its source
  • trigger warning — a stated warning that the content of a text, video, etc., may upset or offend some people, especially those who have previously experienced a related trauma: a blog post with a trigger warning for rape.
  • twist one's arm — to combine, as two or more strands or threads, by winding together; intertwine.
  • twitching trail — a logging road sufficiently developed to allow the hauling of logs along it by horse or tractor.
  • unanswerability — the quality of not being answerable or contestable
  • unseaworthiness — constructed, outfitted, manned, and in all respects fitted for a voyage at sea.
  • walk-in traffic — The walk-in traffic of a store is the number of people who choose to visit it as they pass by.
  • walloon brabant — a province of central Belgium, formed in 1995 from the S part of Brabant province: densely populated and intensively farmed, with large industrial centres. Pop: 360 717 (2004 est). Area: 1091 sq km (421 sq miles)
  • walpurgis night — (especially in medieval German folklore) the evening preceding the feast day of St. Walpurgis, when witches congregated, especially on the Brocken.
  • warmheartedness — The quality of being warmhearted.
  • warrant officer — (in the U.S. Armed Forces) an officer of one of four grades ranking above enlisted personnel and below commissioned officers.
  • warrantableness — Quality of being warrantable.
  • wassermann test — a diagnostic test for syphilis using the fixation of a complement by the serum of a syphilitic individual.
  • water pennywort — any of numerous perennial herbs of the genus Hydrocotyle, of the parsley family, having rounded leaves and living in water or marshy places.
  • water pimpernel — the brookweed.
  • water pollution — the pollution of the sea and rivers
  • water treatment — the act or process of making water more potable or useful, as by purifying, clarifying, softening, or deodorizing it.
  • water-repellent — having a finish that resists but is not impervious to water.
  • water-resistant — resisting though not entirely preventing the penetration of water.
  • weather balloon — sounding balloon.
  • weather station — an installation equipped and used for meteorological observation.
  • weatherboarding — an early type of board used as a siding for a building.
  • weatherproofing — Present participle of weatherproof.
  • weight training — weightlifting done as a conditioning exercise.
  • well-integrated — combining or coordinating separate elements so as to provide a harmonious, interrelated whole: an integrated plot; an integrated course of study.
  • wentworth scale — a scale for specifying the sizes (diameters) of sedimentary particles, ranging from clay particles (less than 1⁄256 mm) to boulders (over 256 mm)
  • west carrollton — a town in W Ohio.
  • western tanager — a tanager, Piranga ludoviciana, of western North America, the male of which is black, yellow, and orange-red.
  • what's-her-name — a girl or woman whose name is unknown, temporarily forgotten, or deliberately overlooked
  • wheaten terrier — soft-coated wheaten terrier.
  • white cast iron — cast iron having most or all of its carbon in the form of cementite and exhibiting a silvery fracture.
  • white snakeroot — a North American plant, Eupatorium urticaefolium, the roots or rhizomes of which have been used as a remedy for snakebite
  • wiener neustadt — a city in E Austria, in Lower Austria. Pop: 37 627 (2002)
  • windfall profit — a profit that arises thanks to an external event over which the person profiting had no control
  • winter holidays — a period of rest from work or studies taken in winter
  • winter purslane — a plant, Montia perfoliata, native to western North America, of the purslane family, having edible, egg-shaped leaves and clusters of small, white flowers.
  • winter quarters — housing or accommodation for the winter, esp for military personnel
  • with one accord — If a number of people do something with one accord, they do it together or at the same time, because they agree about what should be done.
  • wolverine state — Michigan (used as a nickname).
  • worcester china — porcelain articles made in Worcester (England) from 1751 in a factory that became, in 1862, the Royal Worcester Porcelain Company
  • working capital — the amount of capital needed to carry on a business.
  • working storage — the amount of memory used to temporarily store results or other data while a program is running.
  • wreathed column — a column having a twisted or spiral form.
  • wrestling match — sport: contention by grappling opponent
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