convection
noun
con·vec·tion
kən-ˈvek-shən 
1
: the action or process of conveying
2
a
: movement in a gas or liquid in which the warmer parts move up and the cooler parts move down
convection currents
b
: the transfer of heat by convection
foods cooked by convection
compare conduction, radiation
Examples of convection in a Sentence
Recent Examples on the Web
Key design features include passive cooling via natural convection, isogeneration to sustain the fuel cycle, and four physical containment barriers—one more than most current reactors.
—
Jijo Malayil, Interesting Engineering, 28 Nov. 2025
The galley kitchen includes an induction cooktop, combination microwave/convection/air fryer, refrigerator/freezer, and stainless-steel sink.
—Robb Report Studio, Robb Report, 26 Nov. 2025
As noted above, convection helps produce thunderstorms.
—Doyle Rice, USA Today, 25 Nov. 2025
For decades, tectonic activity has been understood as a deep-Earth process, mostly driven by forces like mantle convection, plate motion, and crustal deformation.
—New Atlas, 25 Nov. 2025
See All Example Sentences for convection
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Jijo Malayil, Interesting Engineering, 28 Nov. 2025
The galley kitchen includes an induction cooktop, combination microwave/convection/air fryer, refrigerator/freezer, and stainless-steel sink.
—Robb Report Studio, Robb Report, 26 Nov. 2025
As noted above, convection helps produce thunderstorms.
—Doyle Rice, USA Today, 25 Nov. 2025
For decades, tectonic activity has been understood as a deep-Earth process, mostly driven by forces like mantle convection, plate motion, and crustal deformation.
—New Atlas, 25 Nov. 2025
See All Example Sentences for convection
Cite this Entry
“Convection.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/convection. Accessed 8 Dec. 2025.
Copy CitationKids Definition
convection
noun
con·vec·tion
kən-ˈvek-shən
: motion in a gas or liquid in which the warmer portions rise and the colder portions sink
also
: the transfer of heat by this motion
convective
adjective
-ˈvek-tiv
Medical Definition
convection
noun
con·vec·tion
kən-ˈvek-shən
1
: the circulatory motion that occurs in a fluid at a nonuniform temperature owing to the variation of its density and the action of gravity
2
: the transfer of heat by convection in a fluid
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