15-letter words containing n, o, r, h, t
- third dimension — the additional dimension by which a solid object is distinguished from a planar projection of itself or from any planar object.
- thirtysomething — a person in her or his thirties
- thorndike's law — the principle that all learnt behaviour is regulated by rewards and punishments, proposed by Edward Lee Thorndike (1874–1949), US psychologist
- thought pattern — habitual way of thinking
- thought reading — mind reading.
- thraco-phrygian — a hypothetical branch of Indo-European implying a special genetic affinity between the meagerly attested Thracian and Phrygian languages.
- three of a kind — a set of three cards of the same denomination.
- threepennyworth — an amount having the value or price of threepence
- thyrocalcitonin — calcitonin
- thyroid hormone — A thyroid hormone is a hormone, especially thyroxine or triiodothyronine, produced by the thyroid gland.
- to err is human — If you say that to err is human, you mean that it is natural for human beings to make mistakes.
- to the contrary — opposite in nature or character; diametrically or mutually opposed: contrary to fact; contrary propositions.
- 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 school — a school that provides training in some art, profession, or vocation.
- trainspotterish — obsessed with trivial details, esp of a subject generally considered uninteresting
- transhistorical — occurring throughout all human history
- tribromoethanol — a white, crystalline powder, C 2 H 3 Br 3 O, used as a basal anesthetic.
- trichloroethane — a volatile nonflammable colourless liquid with low toxicity used for cleaning electrical apparatus and as a solvent; 1,2,3-trichloroethane. Formula: CH3CCl3
- trichomonacidal — relating to a trichomonacide
- trithionic acid — a thionic acid, H2S3O6
- trochlear nerve — either one of the fourth pair of cranial nerves, consisting of motor fibers that innervate the superior oblique muscle of the upper part of the eyeball.
- trondheim fiord — an inlet of the North Sea, extending into N Norway. 80 miles (129 km) long.
- trondheim fjord — an inlet of the Norwegian Sea in Norway, and Norway's third longest fjord, near which is the port of Trondheim
- troubleshooting — to act or be employed as a troubleshooter: She troubleshoots for a large industrial firm.
- trout fisherman — a fisherman who catches trout
- trustworthiness — deserving of trust or confidence; dependable; reliable: The treasurer was not entirely trustworthy.
- truth-condition — the circumstances under which a statement is true
- turn the corner — the place at which two converging lines or surfaces meet.
- tyrwhitt-wilson — Gerald Hugh, 14th Baron Berners [bur-nerz] /ˈbɜr nərz/ (Show IPA), 1883–1950, English composer, painter, and author.
- ultramarathoner — a person who takes part in an ultramarathon
- ultrasonography — a diagnostic imaging technique utilizing reflected high-frequency sound waves to delineate, measure, or examine internal body structures or organs.
- unauthoritative — having due authority; having the sanction or weight of authority: an authoritative opinion.
- uncopyrightable — not able to be copyrighted
- under one's hat — a shaped covering for the head, usually with a crown and brim, especially for wear outdoors.
- unrighteousness — not righteous; not upright or virtuous; wicked; sinful; evil: an unrighteous king.
- unseaworthiness — constructed, outfitted, manned, and in all respects fitted for a voyage at sea.
- untrustworthily — in an untrustworthy manner; not trustworthily
- venus hairstone — a variety of rutilated quartz, used as a gemstone.
- vortex shedding — the process by which vortices formed continuously by the aerodynamic conditions associated with a solid body in a gas or air stream are carried downstream by the flow in the form of a vortex street
- 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.
- 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)
- western hemlock — a tall, narrow hemlock, Tsuga heterophylla, of western North America: the state tree of Washington.
- 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
- wilson's thrush — veery.
- winter holidays — a period of rest from work or studies taken in winter