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[duhkt] /dʌkt/
any tube, canal, pipe, or conduit by which a fluid, air, or other substance is conducted or conveyed.
Anatomy, Zoology. a tube, canal, or vessel conveying a body fluid, especially a glandular secretion or excretion.
Botany. a cavity or vessel formed by elongated cells or by many cells.
Electricity. a single enclosed runway for conductors or cables.
Printing. (in a press) the reservoir for ink.
verb (used with object)
to convey or channel by means of a duct or ducts:
Heat from the oven is ducted to the outside.
Origin of duct
1640-50; < Latin ductus conveyance (of water), hence channel (in ML), equivalent to duc- (variant stem of dūcere to lead) + -tus suffix of verbal action
Related forms
ductless, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for duct
Contemporary Examples
Historical Examples
  • Into this duct the ranks of cells around it pour out the peptic juice.

    A Handbook of Health

    Woods Hutchinson
  • I reached the top of the duct and pushed against the slot cover.

    Greylorn John Keith Laumer
  • I heard a muffled clank; then a hum began, echoing up the duct.

    Greylorn John Keith Laumer
  • And there was that hazard here, for every duct looked like every other one.

    Gold in the Sky Alan Edward Nourse
  • The operator then carefully examines the duct preparatory to cutting it.

    Fur Farming For Profit Hermon Basil Laymon
British Dictionary definitions for duct


a tube, pipe, or canal by means of which a substance, esp a fluid or gas, is conveyed
any bodily passage, esp one conveying secretions or excretions
a narrow tubular cavity in plants, often containing resin or some other substance
Also called conduit. a channel or pipe carrying electric cable or wires
a passage through which air can flow, as in air conditioning
the ink reservoir in a printing press
Derived Forms
ductless, adjective
Word Origin
C17: from Latin ductus a leading (in Medieval Latin: aqueduct), from dūcere to lead
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for duct

1640s, "course, direction," from Latin ductus "a leading," past participle of ducere "to lead" (see duke (n.)). Anatomical sense is from 1660s. Meaning "conduit, channel" is 1713; that of "air tube in a structure" is from 1884.

Online Etymology Dictionary, © 2010 Douglas Harper
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duct in Medicine

duct (dŭkt)
A tubular bodily canal or passage, especially one for carrying a glandular secretion such as bile.

duct·al adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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duct in Science
A tube or tubelike structure through which something flows, especially a tube in the body for carrying a fluid secreted that is by a gland.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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