| tunicate | <zoology> One of the Tunicata. Source: Websters Dictionary (01 Mar 1998) |
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| tunicated | 1. <botany> Covered with a tunic; covered or coated with layers; as, a tunicated bulb. 2. <zoology> Having a tunic, or mantle; of or pertaining to the Tunicata. Having each joint buried in the preceding funnel-shaped one, as in certain antennae of insects. Origin: L. Tunicatus, p. P. Of tunicare to clothe with a tunic, fr. Tunica a tunic. Source: Websters Dictionary (01 Mar 1998) |
| tunicin | <physiology> Animal cellulose; a substance present in the mantle, or tunic, of the Tunicates, which resembles, or is identical with, the cellulose of the vegetable kingdom. Source: Websters Dictionary (01 Mar 1998) |
| tunicle | 1. A slight natural covering; an integument. "The tunicles that make the ball or apple of the eye." (Holland) 2. A short, close-fitting vestment worn by bishops under the dalmatic, and by subdeacons. Origin: L. Tunicula a little tunic, coat, or membrane, dim. Of tunica a tunic: cf. OF. Tunicle. Source: Websters Dictionary (01 Mar 1998) |
| tuning fork | <instrument> A steel or magnesium-alloy instrument roughly resembling a two-pronged fork, the vibrations of the prongs of which, when struck, give a musical note of restricted band width; used to test the hearing and vibratory sensation. (05 Mar 2000) |
| tunisia | A republic in northern africa between algeria and libya. Its capital is tunis, which occupies the site of ancient carthage. Tunisia became a french protectorate in 1881 but was reorganised in 1922. France recognised its independence in 1956. The country takes its name from the capital, which some authorities derive from the name of the phoenician goddess tanith, the meaning of which is uncertain. (12 Dec 1998) |
| tunker | Same as Dunker. Source: Websters Dictionary (01 Mar 1998) |
| tunnel | 1. To form into a tunnel, or funnel, or to form like a tunnel; as, to tunnel fibrous plants into nests. 2. To catch in a tunnel net. 3. To make an opening, or a passageway, through or under; as, to tunnel a mountain; to tunnel a river. Origin: Tunneled or Tunnelled; Tunneling or Tunnelling. 1. A vessel with a broad mouth at one end, a pipe or tube at the other, for conveying liquor, fluids, etc, into casks, bottles, or other vessels; a funnel. 2. The opening of a chimney for the passage of smoke; a flue; a funnel. "And one great chimney, whose long tunnel thence The smoke forth threw." (Spenser) 3. An artificial passage or archway for conducting canals or railroads under elevated ground, for the formation of roads under rivers or canals, and the construction of sewers, drains, and the like. 4. <chemical> A level passage driven across the measures, or at right angles to veins which it is desired to reach; distinguished from the drift, or gangway, which is led along the vein when reached by the tunnel. <chemistry> Tunnel head, the top of a smelting furnace where the materials are put in. Tunnel kiln, a limekiln in which coal is burned, as distinguished from a flame kiln, in which wood or peat is used. Tunnel net, a net with a wide mouth at one end and narrow at the other. Tunnel pit, Tunnel shaft, a pit or shaft sunk from the top of the ground to the level of a tunnel, for drawing up the earth and stones, for ventilation, lighting, and the like. Origin: F. Tonnelle a semicircular, wagon-headed vault, a tunnel net, an arbor, OF. Also tonnel; dim. Of tonne a tun; so named from its resemblance to a tun in shape. See Ton. Source: Websters Dictionary (01 Mar 1998) |
| tunnel cells | Cell's forming the outer and inner walls of the tunnel in the organ of Corti. Synonym: Corti's pillars, Corti's rods, pillar cells of Corti, tunnel cells. (05 Mar 2000) |
| tunnel disease | Infection of humans or animals with hookworms of the genus ancylostoma. Characteristics include anaemia, dyspepsia, eosinophilia, and abdominal swelling. (12 Dec 1998) |
| tunnel vision | A constriction of the visual field, as though one were looking through a hollow cylinder or tube. Synonym: tunnel vision. (05 Mar 2000) |
| tunneling effect | <radiobiology> In quantum mechanics, a particle approaching a potential energy barrier of finite extent has a chance (usually small) of tunneling through the barrier, even though it lacks the energy to go over the barrier. Tunneling plays a strong role in fusion reactions: particles which do not have enough energy to climb over the electrostatic energy barrier (into the region where nuclear attractions dominate) can still fuse by tunneling through. (09 Oct 1997) |
| tunny | Origin: L. Thunnus, thynnus, Gr,: cf. It. Tonno, F. & Pr. Thon. <zoology> Any one of several species of large oceanic fishes belonging to the Mackerel family, especially the common or great tunny (Orcynus or Albacora thynnus) native of the Mediterranean Sea and the Atlantic Ocean. It sometimes weighs a thousand pounds or more, and is extensively caught in the Mediterranean. On the American coast it is called horse mackerel. Alternative forms: thynny. The little tunny (Gymnosarda alletterata) of the Mediterranean and North Atlantic, and the long-finned tunny, or albicore (see Albicore), are related species of smaller size. Source: Websters Dictionary (01 Mar 1998) |
| tunable dye l. |
a dye laser whose active medium can be altered so that the beam has any of several wavelengths.
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| tungiasis |
infestation of the skin with the chigoe (Tunga penetrans).
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| tungsten carbide d. |
hard metal d.
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| tunicary |
tunicate (def. 1).
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| Tunicata |
Urochordata.
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