| Watson-Crick helix | The helical structure assumed by two strands of deoxyribonucleic acid, held together throughout their length by hydrogen bonds between bases on opposite strands, referred to as Watson-Crick base pairing. See: base pair. Synonym: DNA helix, double helix, twin helix. (05 Mar 2000) |
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| Watson-Schwartz test | A qualitative screening test for diagnosis of acute intermittent porphyria by the addition of Ehrlich's reagent and saturated sodium acetate to the urine; a pink or red colour indicates the presence of porphobilinogen or urobilinogen; the former indicates porphyria, the latter does not; therefore, positive results require further differential extraction with butanol and chloroform to eliminate false-positive results due to urobilinogen. (05 Mar 2000) |
| Watsonius watsoni | An amphistome intestinal fluke of primates in West Africa and Singapore. (05 Mar 2000) |
| watt | <physics> A unit of power or activity equal to 10^7 C.G.S. Units of power, or to work done at the rate of one joule a second. An English horse power is approximately equal to 746 watts. Origin: From the distinguished mechanician and scientist, James Watt. Source: Websters Dictionary (01 Mar 1998) |
| wattle | 1. A twig or flexible rod; hence, a hurdle made of such rods. "And there he built with wattles from the marsh A little lonely church in days of yore." (Tennyson) 2. A rod laid on a roof to support the thatch. 3. <zoology> A naked fleshy, and usually wrinkled and highly coloured, process of the skin hanging from the chin or throat of a bird or reptile. Barbel of a fish. 4. The astringent bark of several Australian trees of the genus Acacia, used in tanning. Synonym: wattle bark. <botany> The trees from which the bark is obtained. See Savanna wattle, under Savanna. Wattle turkey. <zoology> Same as Brush turkey. Origin: AS. Watel, watul, watol, hurdle, covering, wattle; cf. OE. Watel a bag. Cf. Wallet. Source: Websters Dictionary (01 Mar 1998) |
| wattlebird | 1. <ornithology> Any one of several species of honey eaters belonging to Anthochaera and allied genera of the family Meliphagidae. These birds usually have a large and conspicuous wattle of naked skin hanging down below each ear. They are natives of Australia and adjacent islands. The best-known species (Anthochaera carunculata) has the upper parts grayish brown, with a white stripe on each feather, and the wing and tail quills dark brown or blackish, tipped with withe. Its wattles, in life, are light blood-red. Called also wattled crow, wattled bee-eater, wattled honey eater. Another species (A. Inauris) is streaked with black, gray, and white, and its long wattles are white, tipped with orange. The bush wattlebirds, belonging to the genus Anellobia, are closely related, but lack conspicuous wattles. The most common species (A. Mellivora) is dark brown, finely streaked with white. Called also goruck creeper. 2. <zoology> The Australian brush turkey. Source: Websters Dictionary (01 Mar 1998) |
| wattmeter | <physics> An instrument for measuring power in watts, much used in measuring the energy of an electric current. Origin: Watt + meter. Source: Websters Dictionary (01 Mar 1998) |
| water |
a molecule-composed compound of hydrogen and oxygen.
출처: www.estuaries.gov/glossary.html
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| watershed |
The specific land area that drains water into a river system or other body of water.
출처: www.unesco.org/education/tlsf/theme_c/mod13/www.wo...
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| water table |
The surface in an unconfined aquifer or confining bed at which the pore water pressure is equal to atmospheric pressure.
출처: web.em.doe.gov/wssrap/glossary.html
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| watery |
Describes a poor wine with even less body than one that is merely thin.
출처: www.fogwells.com/webworks/glossary/t-z.html
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| water table |
the surface of a groundwater body at which the water pressure equals atmospheric pressure. Earth material below the groundwater table is saturated with water.
출처: www.michigan.gov/deq/0,1607,7-135-3313_3684_3724-5...
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| WAT | the water present in hydrated compounds |
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| WAT | hydrarthrosis affecting the knee |
| WAT | a tropical floating aquatic plant having spikes of large blue flowers |
| WAT | small stocky diving bird without webbed feet |
| WAT | Asiatic buffalo often domesticated for use as a draft animal |
| WAT | stout white-flowered perennial found wild in shallow fresh water |
| WAT | a line that divides two adjacent river systems |
| WAT | a white-flowered aquatic plant of the genus Samolus |
| WAT | a pipe with a long flexible tube connected to a container where the smoke is cooled by passing through water |
| WAT | plaything consisting of a toy pistol that squirts water |
| WAT | a plant that grows partly or wholly in water whether rooted in the mud, as a lotus, or floating without anchorage, as the water hyacinth |
| WAT | marsh plant having clusters of small white or pinkish flowers and broad pointed or rounded leaves |