\ ˈdəkt How to pronounce duct (audio) \

Definition of duct

 (Entry 1 of 2)

1 : a bodily tube or vessel especially when carrying the secretion of a gland
2a : a pipe, tube, or channel that conveys a substance
b : a pipe or tubular runway for carrying an electric power line, telephone cables, or other conductors
3 : a tube or elongated cavity (such as a xylem vessel) in plant tissue
4 : a layer (as in the atmosphere or the ocean) which occurs under usually abnormal conditions and in which radio or sound waves are confined to a restricted path


ducted; ducting; ducts

Definition of duct (Entry 2 of 2)

transitive verb

1 : to enclose in a duct
2 : to convey (something, such as a gas) through a duct also : to propagate (something, such as radio waves) through a duct

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Other Words from duct


ductal \ ˈdək-​tᵊl How to pronounce ductal (audio) \ adjective
ductless \ ˈdək(t)-​ləs How to pronounce ductless (audio) \ adjective

Examples of duct in a Sentence

Noun air ducts to provide ventilation
Recent Examples on the Web: Noun During the pandemic, carpet- and duct-cleaning companies are placing ads promoting the health benefits their services provide. Consumers’ Checkbook, SFChronicle.com, "Home repairs during coronavirus pandemic," 31 July 2020 There’s a blue glow coming from a return air duct high in the back wall, the sign of light bulbs installed back there in the hope of killing airborne virus. al, "Among first bars to close, Mobile’s Haberdasher is back," 30 July 2020 Many of the interactive elements have been modified to reduce contact, but some elements are temporarily closed — including the sections in which visitors crawl through an air duct, and attempt to escape East Berlin by hiding in a Trabant. Fritz Hahn, Washington Post, "Museums and gardens are reopening across the region. Here’s what you can visit now.," 26 June 2020 Empty apartments are marked by a red duct-tape X. Occupied units have plastic over their front doors to protect residents from the dust that construction kicks up. Aaron Gilbreath, Longreads, "Life in the Chelsea Hotel During Pandemic," 10 June 2020 Its new nose features compact horizontal LED headlights topped by new brake cooling ducts. Scott Oldham, Car and Driver, "2020 Ferrari F8 Tributo Demands Driver Involvement," 29 May 2020 Irradiating air in the climate control system’s ducts is another possibility. Mark Phelan, Detroit Free Press, "Here are ways your next car could be virus-proof," 16 May 2020 Using frozen dumplings as skulls and air-conditioning ducts as neck ruffs, re-enactors pair their own photos with images of the originals. Remy Tumin, New York Times, "Reopening, Coronavirus, N.F.L. Draft: Your Weekend Briefing," 26 Apr. 2020 Vinyl flooring and rubber pads were fixed to the gym floor, swamp coolers were placed on the roof to provide cool air, and two large exhaust ducts were installed to provide proper ventilation, said Lt. USA TODAY, "Treehouse isolation, python masks, farm-to-food bank: News from around our 50 states," 21 Apr. 2020 Recent Examples on the Web: Verb And so, with a collection of eccentric field assistants, a variety of snow-ready (and occasionally duct-taped) vehicles, and a willingness to follow wherever tracks led, Slaght delved into the wilderness. Stephanie Hanes, The Christian Science Monitor, "Camping in Siberia: On the trail of the world’s largest owl," 4 Aug. 2020 Campers sometimes duct-tape their tents right to the deck. Michelle Theriault Boots, Anchorage Daily News, "Onboard the ferry to the end of the world," 31 May 2016 According to the Department of Energy, ducts that leak air can add hundreds of dollars to your energy bill each year. Jessica Levy, Indianapolis Star, "4 ways this home repair will lower your energy bills and boost your health," 28 June 2019 Sterigenics executives said there would be dramatic improvements last summer after the company ducted vents from its sterilization chambers into existing pollution controls at both Willowbrook facilities. Michael Hawthorne, chicagotribune.com, "In a bid to reopen shuttered Willowbrook plant, Sterigenics proposes tighter controls on cancer-causing gas," 27 June 2019 Back in March, DARPA announced that it had awarded company called Aurora Flight Sciences a contract to start test its far-out design for a VTOL craft propelled by two dozen ducted fans. Eric Limer, Popular Mechanics, "DARPA's Bonkers 24-Prop Plane Takes Flight," 19 Apr. 2016 Apprentices receive lower pay than more experienced metal fabricators, who make ducting for heating, ventilation and air conditioning systems, and are normally in demand by contractors. Jeannette Lee Falsey, Alaska Dispatch News, "How bad is Alaska’s recession? Economists call it ‘moderate’ so far.," 26 July 2017 Miles of neatly ducted, shielded cables run along the ceiling. Sebastian Anthony, Ars Technica, "Taking a flight on the best Boeing 757," 3 July 2017 The District 181 Board Monday approved paying for a fitness mezzanine and expanded storage at about $53,400, two operable windows per classroom for about $217,400 and ducted fan coil units in lieu of cassettes for about $134,500. Chuck Fieldman, chicagotribune.com, "Track not part of $400,000 in Hinsdale Middle School additions," 27 June 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'duct.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of duct


1667, in the meaning defined at sense 1


1936, in the meaning defined at sense 1

History and Etymology for duct


New Latin ductus, from Medieval Latin, aqueduct, from Latin, act of leading, from ducere to lead — more at tow entry 1

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Statistics for duct

Last Updated

7 Aug 2020

Cite this Entry

“Duct.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/duct. Accessed 15 Aug. 2020.

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More Definitions for duct


How to pronounce duct (audio)

English Language Learners Definition of duct

: a pipe or tube for air, water, electric power lines, etc., to pass through
: a tube in the body that carries a particular liquid


\ ˈdəkt How to pronounce duct (audio) \

Kids Definition of duct

: a pipe, tube, or vessel that carries something air-conditioning ducts tear ducts


\ ˈdəkt How to pronounce duct (audio) \

Medical Definition of duct

: a bodily tube or vessel especially when carrying the secretion of a gland

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More from Merriam-Webster on duct

Thesaurus: All synonyms and antonyms for duct

Spanish Central: Translation of duct

Nglish: Translation of duct for Spanish Speakers

Britannica English: Translation of duct for Arabic Speakers

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