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18-letter words containing r, d, a

  • triphosphoric acid — the hypothetical acid H 5 P 3 O 10 , known chiefly by its salts.
  • tristan und isolde — a music drama (composed, 1857–59; première, 1865) by Richard Wagner.
  • trobriand islander — a native or inhabitant of the Trobriand Islands of Papua New Guinea
  • turk's-head cactus — a cactus, Melocactus communis, of Jamaica, having needlelike spines and a cylindrical body with a tawny-red, fezlike terminal part bearing red flowers.
  • turn one's hand to — the terminal, prehensile part of the upper limb in humans and other primates, consisting of the wrist, metacarpal area, fingers, and thumb.
  • ultrasonic welding — the use of high-energy vibration of ultrasonic frequency to produce a weld between two components which are held in close contact
  • ultrasound scanner — a device used to examine an internal bodily structure by the use of ultrasonic waves, esp for the diagnosis of abnormality in a fetus
  • under (one's) seal — in a document authenticated by one's seal
  • under lock and key — a device for securing a door, gate, lid, drawer, or the like in position when closed, consisting of a bolt or system of bolts propelled and withdrawn by a mechanism operated by a key, dial, etc.
  • under one's breath — the air inhaled and exhaled in respiration.
  • under the aegis of — guided or protected by
  • under the jackboot — If a country or group of people is under the jackboot, they are suffering because the government is cruel and undemocratic.
  • under-compensation — to compensate or pay less than is fair, customary, or expected.
  • under-depreciation — decrease in value due to wear and tear, decay, decline in price, etc.
  • under-registration — the act of registering.
  • unearned increment — the increase in the value of property, especially land, due to natural causes, as growth of population, rather than to any labor or expenditure by the owner.
  • united arab states — a former (1958–61) federation of the United Arab Republic (Egypt and Syria) and Yemen.
  • united states army — the permanent or regular military land force of the United States, under the authority of the Department of Defense since 1947. Abbreviation: USA.
  • universal debugger — (tool, parallel)   (udb) KSR's interactive source level debugger for serial and parallel programs written in KSR, Fortran, KSR C and KSR1 assembly language. Udb is a source level debugger for testing and debugging serial and parallel programs; it is compatible with GDB and dbx. The user can direct udb either by typing commands or graphically through an X-based window interface; the latter provides simultaneous display of source code, I/O and instructions. For parallel programs, operations can be carried out per-thread.
  • upper middle class — wealthy, highly-educated people
  • ur of the chaldees — the city where Abraham was born, sometimes identified with the Sumerian city of Ur. Gen. 11:28, 31; 15:7; Neh. 9:7.
  • urban homesteading — homesteading (def 2).
  • vectorcardiography — a method of determining the direction and magnitude of the electrical forces of the heart.
  • venezia tridentina — a former department in N Italy, now forming the greater part of the region of Trentino-Alto Adige.
  • vermiform appendix — a narrow, blind tube protruding from the cecum, having no known useful function, in humans being 3 to 4 inches (8 to 10 cm) long and situated in the lower right-hand part of the abdomen.
  • vicar of wakefield — a novel (1766) by Goldsmith.
  • video surveillance — a system of monitoring activity in an area or building using a television system in which signals are transmitted from a television camera to the receivers by cables or telephone links forming a closed circuit
  • videotape recorder — a device for recording television programs on magnetic tape for delayed transmission or for storage.
  • wage determination — the process of setting wage rates or establishing wage structures in particular situations
  • wandering minstrel — travelling performer
  • wardrobe assistant — a person who assists the wardrobe mistress in a theatre
  • water of hydration — the portion of a hydrate that is represented as, or can be expelled as, water: now usually regarded as being in true molecular combination with the other atoms of the compound, and not existing in the compound as water.
  • watson-crick model — a widely accepted model for the three-dimensional structure of DNA, featuring a double-helix configuration for the molecule's two hydrogen-bonded complementary polynucleotide strands.
  • welwyn garden city — a town in SE England, in Hertfordshire: established (1920) as a planned industrial and residential community. Pop: 43 512 (2001)
  • west-northwestward — moving, bearing, facing, or situated toward the west-northwest.
  • west-southwestward — moving, bearing, facing, or situated toward the west-southwest.
  • western meadowlark — any of several American songbirds of the genus Sturnella, of the family Icteridae, especially S. magna (eastern meadowlark) and S. neglecta (western meadowlark) having a brownish and black back and wings and a yellow breast, noted for their clear, tuneful song.
  • white man's burden — the alleged duty of white colonizers to care for nonwhite indigenous subjects in their colonial possessions.
  • white-faced hornet — any large, stinging paper wasp of the family Vespidae, as Vespa crabro (giant hornet) introduced into the U.S. from Europe, or Vespula maculata (bald-faced hornet or white-faced hornet) of North America.
  • wild passionflower — the maypop, Passiflora incarnata.
  • wildlife programme — (esp on television) a documentary whose subject is wild animals in their natural habitat or undomesticated fauna and flora generally
  • wildlife sanctuary — an area where wild animals and plants are protected
  • winged everlasting — a bushy composite plant, Ammobium alatum, of Australia, having winged branches, javelin-shaped leaves, and white flowers.
  • withdrawal symptom — effects of stopping a drug
  • woman of the world — a woman experienced and sophisticated in the ways and manners of the world, especially the world of society.
  • work-study program — a program enabling high-school or college students to combine academic work with actual job experience.
  • world championship — an international competition in a particular sport or activity for people all around the world
  • world trade center — New York: business district
  • wpa pre-shared key — Wi-Fi Protected Access Pre-Shared Key
  • wrongful dismissal — the act of making someone redundant for reasons which are illegal or unjust
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