duct
n 1: a bodily passage or tube lined with epithelial cells and
conveying a secretion or other substance; "the tear duct
was obstructed"; "the alimentary canal"; "poison is
released through a channel in the snake's fangs" [syn:
duct, epithelial duct, canal, channel]
2: a continuous tube formed by a row of elongated cells lacking
intervening end walls
3: an enclosed conduit for a fluid
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Duct \Duct\ (d[u^]kt), n. [L. ductus a leading, conducting,
conduit, fr. ducere, ductum, to lead. See Duke, and cf.
Douche.]
1. Any tube or canal by which a fluid or other substance is
conducted or conveyed.
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2. (Anat.) One of the vessels of an animal body by which the
products of glandular secretion are conveyed to their
destination.
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3. (Bot.) A large, elongated cell, either round or prismatic,
usually found associated with woody fiber.
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Note: Ducts are classified, according to the character of the
surface of their walls, or their structure, as annular,
spiral, scalariform, etc.
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4. Guidance; direction. [Obs.] --Hammond.
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