Hypertext Webster Gateway: "duct"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Duct \Duct\, 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.
2. (Anat.) One of the vessels of an animal body by which the
products of glandular secretion are conveyed to their
destination.
3. (Bot.) A large, elongated cell, either round or prismatic,
usually found associated with woody fiber.
Note: Ducts are classified, according to the character of the
surface of their walls, or their structure, as annular,
spiral, scalariform, etc.
4. Guidance; direction. [Obs.] --Hammond.
From WordNet (r) 1.7 (wn)
duct
n 1: a bodily passage or tube conveying a secretion or other
substance [syn: {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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