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
Examples of duct in a Sentence
Noun
air ducts to provide ventilation
Recent Examples on the Web
Jonathan B. Jassey, Verywell Health, 18 Apr. 2025
The sides also have ducts carved out to keep air passing through to the back.
—New Atlas, 8 Apr. 2025
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
In the remaining 10% of cases, the dorsal and ventral ducts fail to fuse and remain separate.21
Specific causes of pancreas divisum are not clear.
—Jonathan B. Jassey, Verywell Health, 18 Apr. 2025
The sides also have ducts carved out to keep air passing through to the back.
—New Atlas, 8 Apr. 2025
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
Cite this Entry
“Duct.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/duct. Accessed 5 May. 2025.
Copy CitationMedical Definition
duct
noun
: a bodily tube or vessel especially when carrying the secretion of a gland
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