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1. An often enclosed passage or channel for conveying a substance, especially a liquid or gas.
2. Anatomy A tubular bodily canal or passage, especially one for carrying a glandular secretion: a tear duct.
3. A tube or pipe for enclosing electrical cables or wires.
tr.v. duct·ed, duct·ing, ducts
1. To channel through a duct: duct the moist air away.
2. To supply with ducts.

[Latin ductus, act of leading, from past participle of dūcere, to lead; see deuk- in Indo-European roots.]

duct′al adj.
duct′less adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.ductless - not having a duct; "ductless glands"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


A. ADJendocrino
B. CPD ductless gland Nglándula f endocrina
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005
References in classic literature ?
These are among the ductless glands, the functions of which, both in physiology and in connection with the emotions, have only come to be known during recent years.
46788 Sunset Ave, Westfir; Marquardt Phillip H & Joanna I; Electrical For New Ductless Heat Pump - See 509-Bp16-00585; $4,788.
The MicroFlow I Workstation from HEMCO is a ductless carbon-filtered workstation, equipped with activated carbon filtration, designed to collect small amounts of non-hazardous fumes and odors.
Manufactured with Senville's signature leading edge ductless system technology, the latest collection will have dual, tri and quad zone systems available designed with sophistication that the brand is known for.
The Mobile EDU, a mobile ductless fume hood from Air Science USA, is suitable for classroom demonstrations and industrial training.
The ductless balance enclosures are manufactured in the USA and are shipped fully assembled.
Brawn Cody J & Kasandra, 5360 B St; install ductless heat pump; $3,240.
The Purair 20 Ductless Fume Hood from Air Science has been designed to provide operator protection when using hazardous substances.
With its innovative heating and cooling systems, LG Electronics offers an excellent ductless air condition for your cooling needs.
Patriot ductless fume hoods from AirClean Systems feature the AirSafe Touch automatic safety controller for operator safety.
According to Brandon Howell, Marketing Manager at AirClean Systems, high-end thermoplastics, such as polypropylene, is used for the construction of their ductless and exhaust fume hoods.