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ductless

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duct

  [duhkt]
Use ductless in a Sentence
–noun
1. any tube, canal, pipe, or conduit by which a fluid, air, or other substance is conducted or conveyed.
2. Anatomy, Zoology. a tube, canal, or vessel conveying a body fluid, esp. a glandular secretion or excretion.
3. Botany. a cavity or vessel formed by elongated cells or by many cells.
4. Electricity. a single enclosed runway for conductors or cables.
5. Printing. (in a press) the reservoir for ink.
–verb (used with object)
6. to convey or channel by means of a duct or ducts: Heat from the oven is ducted to the outside.
Origin:
1640–50; < L ductus conveyance (of water), hence channel (in ML), equiv. to duc- (var. s. of dūcere to lead) + -tus suffix of verbal action

Related forms:
ductless, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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duct   (dŭkt)   
n.  

  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.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

duct 
1650, from L. ductus "a leading," pp. of ducere "to lead" (see duke). Ductile was in M.E.
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: duct
Pronunciation: 'd&kt
Function: noun
: a bodily tube or vessel especially when carrying the secretion of a gland

Main Entry: duct·less
Pronunciation: 'd&k-tl&s
Function: adjective
: being without a duct
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

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

duct·al adj.

ductless duct·less (dŭkt'lĭs)
adj.
Lacking a duct, as glands that only secrete internally.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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