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duct |
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duct 1. any bodily passage, esp one conveying secretions or excretions 2. a narrow tubular cavity in plants, often containing resin or some other substance 3. a channel or pipe carrying electric cable or wires duct [dəkt] (anatomy) An enclosed tubular channel for conducting a glandular secretion or other body fluid. (communications) An enclosed runway for cables. (geophysics) The space between two air layers, or between an air layer and the earth's surface, in which microwave beams are trapped in ducting. Also known as radio duct; tropospheric duct. (mechanical engineering) A fluid flow passage which may range from a few inches in diameter to many feet in rectangular cross section, usually constructed of galvanized steel, aluminum, or copper, through which air flows in a ventilation system or to a compressor, supercharger, or other equipment at speeds ranging to thousands of feet per minute. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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belling the cat bellingerite Bellingham Bellingshausen Sea Bellingshausen, Fabian Gottlieb von Bellini Bellini family Bellini's duct Bellini, Vincenzo Bellinzona bellite Bellman's principle of optimality Bellman, Carl Michael Bellmawr Bello, Andrés |
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