| wall conditioning | <radiobiology> Describes a class of procedures used to control the composition of materials adsorbed onto the walls of a plasma device. Conditioning is important because material from the walls can create impurities in the plasma, and these impurities typically degrade plasma performance. See: boronisation, impurity control, electron cyclotron discharge cleaning. (09 Oct 1997) |
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| wall loading | <radiobiology> Fusion reactor thermal output power divided by the area of the wall facing the plasma. (Neutron wall loading is 4/5 of the total for D-T fusion.) (09 Oct 1997) |
| wall of nail | The fold of skin overlapping the lateral and proximal margins of the nail. Synonym: vallum unguis, wall of nail. (05 Mar 2000) |
| wall-eye | 1. An eye in which the iris is of a very light gray or whitish colour; said usually of horses. Jonson has defined wall-eye to be "a disease in the crystalline humor of the eye; glaucoma." But glaucoma is not a disease of the crystalline humor, nor is wall-eye a disease at all, but merely a natural blemish. In the north of England, as Brockett states, persons are said to be wall-eyed when the white of the eye is very large and distorted, or on one side. 2. <zoology> An American fresh water food fish (Stizostedion vitreum) having large and prominent eyes; called also glasseye, pike perch, yellow pike, and wall-eyed perch. A California surf fish (Holconotus argenteus). The alewife; called also wall-eyed herring. See: Wall-eyed. Source: Websters Dictionary (01 Mar 1998) |
| wall-eyed | Having an eye of a very light gray or whitish colour. Shakespeare, in using wall-eyed as a term of reproach (as "wall-eyed rage," a "wall-eyed wretch"), alludes probably to the idea of unnatural or distorted vision. See the Note under Wall-eye. It is an eye which is utterly and incurably perverted, an eye that knows no pity. Origin: Icel. Valdeygthr, or vagleygr; fr. Vagl a beam, a beam in the eye (akin to Sw. Vagel a roost, a perch, a sty in the eye) + eygr having eyes (from auga eye). See Eye. Source: Websters Dictionary (01 Mar 1998) |
| wall-plat | <zoology> The spotted flycatcher. It builds its nest on walls. Source: Websters Dictionary (01 Mar 1998) |
| wallaba | <botany> A leguminous tree (Eperua falcata) of Demerara, with pinnate leaves and clusters of red flowers. The reddish brown wood is used for palings and shingles. Source: Websters Dictionary (01 Mar 1998) |
| wallaby | Origin: From a native name. <zoology> Any one of numerous species of kangaroos belonging to the genus Halmaturus, native of Australia and Tasmania, especially the smaller species, as the brush kangaroo (H. Bennettii) and the pademelon (H. Thetidis). The wallabies chiefly inhabit the wooded district and bushy plains. Alternative forms: wallabee, and whallabee. Source: Websters Dictionary (01 Mar 1998) |
| Wallace, Alfred Russel | <person> A British naturalist who founded the field of biogeography and independently formulated a theory of natural selection around the same time that Darwin was doing his work. Lived: 1823-1913. (09 Oct 1997) |
| wallah | <zoology> A black variety of the jaguar. Synonym: tapir tiger. Alternative forms: walla. Source: Websters Dictionary (01 Mar 1998) |
| wallaroo | <zoology> Any one of several species of kangaroos of the genus Macropus, especially M. Robustus, sometimes called the great wallaroo. Source: Websters Dictionary (01 Mar 1998) |
| wallbird | <zoology> The spotted flycatcher. Source: Websters Dictionary (01 Mar 1998) |
| wallenberg's syndrome | <syndrome> Syndrome caused by occlusion of the posterior inferior cerebellar artery, marked by ipsilateral loss of facial pain and temperature sensations, ipsilateral limb ataxia, and contralateral loss of pain and temperature sensations in the trunk and extremities. (12 Dec 1998) |
| Wallenberg, Adolf | <person> German physician, 1862-1949. See: Wallenberg's syndrome. (05 Mar 2000) |
| waller | <zoology> The wels. Origin: G. Source: Websters Dictionary (01 Mar 1998) |
Synonyms : Insensible Water Loss, Insensible Water Losses
Synonyms : Microbiology, Water
Synonyms : Movement, Water, Movements, Water, Water Movement
Synonyms : Pollutants, Water
Synonyms : Leachate, Landfill, Pollutants, Chemical Water
| watershed |
a ridge of land that separates two adjacent river systems landmark: an event marking a unique or important historical change of course or one on which important developments depend; "the agreement was a watershed in the history of both nations"
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| watery |
filled with water; "watery soil" reeking: wet with secreted or exuded moisture such as sweat or tears; "wiped his reeking neck" relating to or resembling or consisting of water; "a watery substance"; "a watery color" overly diluted; thin and insipid; "washy coffee"; "watery milk"; "weak tea"
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| Watson |
United States telephone engineer who assisted Alexander Graham Bell in his experiments (1854-1934) United States psychologist considered the founder of behavioristic psychology (1878-1958) United States geneticist who (with Crick in 1953) helped discover the helical structure of DNA (born in 1928)
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| water bed |
a bed with a mattress made of strong plastic that is filled with water
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| waxing |
the application of wax to a surface a gradual increase in magnitude or extent; "the waxing of the moon" (of the moon) pertaining to the period during which the visible surface of the moon increases; "the waxing moon passes from new to full"
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| WA | the music of Wagner |
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| WA | German composer of operas and inventor of the music drama in which drama and spectacle and music are fused (1813-1883) |
| WA | Austrian architect and pioneer of modern architecture (1841-1918) |
| WA | of or relating to Richard Wagner or his music |
| WA | a car that has a long body and rear door with space behind rear seat |
| WA | van used by police to transport prisoners |
| WA | any of various kinds of wheeled vehicles drawn by a horse or tractor |
| WA | a child's four-wheeled toy cart sometimes used for coasting |
| WA | a group of seven bright stars in the constellation Ursa Major |
| WA | a metal hoop forming the tread of a wheel |
| WA | a procession (of wagons or mules or camels) traveling together in single file |
| WA | a wheel of a wagon |