1
: a bodily tube or vessel especially when carrying the secretion of a gland
2
a
: 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
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
Synonyms
Examples of duct in a Sentence
Noun
air ducts to provide ventilation
Recent Examples on the Web
Timothy Dale, Better Homes & Gardens, 26 Nov. 2024
Before the first freeze moves in, Coloradans should have their home evaluated for leaky ducts, drafts around doors and windows, fireplace dampers and other areas where air might escape.
—Lauren Penington, The Denver Post, 24 Oct. 2024
Kaitlyn McInnis, Better Homes & Gardens, 13 Apr. 2023
The board approved the purchase of items needed for educating during the coronavirus, including $200,000 for HVAC ultraviolet disinfectant emitters for A /C units and duct microbial control and $150,000 for COVID-19 testing that provides results in about 24-36 hours.
—Savannah Mehrtens, Houston Chronicle, 12 Aug. 2020
See all Example Sentences for duct 
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Noun
For instance, in a furnace the pilot light ignites a larger burner at the beginning of a heating cycle, then the heat produced by the burner is distributed throughout the home by an internal fan and a series of ducts and vents.
—Timothy Dale, Better Homes & Gardens, 26 Nov. 2024
Before the first freeze moves in, Coloradans should have their home evaluated for leaky ducts, drafts around doors and windows, fireplace dampers and other areas where air might escape.
—Lauren Penington, The Denver Post, 24 Oct. 2024
Verb
Duct size and compatibility: Matching the exhaust fan's duct size and type with your existing ductwork or ventilation system can reduce the need for additional ductwork modifications or adapters.
—Kaitlyn McInnis, Better Homes & Gardens, 13 Apr. 2023
The board approved the purchase of items needed for educating during the coronavirus, including $200,000 for HVAC ultraviolet disinfectant emitters for A /C units and duct microbial control and $150,000 for COVID-19 testing that provides results in about 24-36 hours.
—Savannah Mehrtens, Houston Chronicle, 12 Aug. 2020
See all Example Sentences for duct
Dictionary Entries Near duct
Cite this Entry
“Duct.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/duct. Accessed 26 Dec. 2024.
Copy CitationMedical Definition
duct
noun
: a bodily tube or vessel especially when carrying the secretion of a gland
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