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
Satellite and other images starkly illustrate Melissa’s monstrosity, from its rapid intensification to the sheer power of the convection at its core.
—
Jeanna Bryner, Scientific American, 28 Oct. 2025
Such storms occur when a vast interior region of the Sun that is too hot for convection collides with the cooler region nearer the Sun’s surface, creating a magnetic field of unimaginable power.
—Literary Hub, 27 Oct. 2025
This cooking method combines three different microwave technologies (traditional microwaving, convection heating and halogen light) to brown foods on the outside while leaving the inside perfectly moist.
—Bestreviews, Mercury News, 23 Oct. 2025
The depth of the convective region (how far convection extends down into the atmosphere) seems to be the deciding factor.
—Christopher McFadden, Interesting Engineering, 11 Oct. 2025
See All Example Sentences for convection
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Jeanna Bryner, Scientific American, 28 Oct. 2025
Such storms occur when a vast interior region of the Sun that is too hot for convection collides with the cooler region nearer the Sun’s surface, creating a magnetic field of unimaginable power.
—Literary Hub, 27 Oct. 2025
This cooking method combines three different microwave technologies (traditional microwaving, convection heating and halogen light) to brown foods on the outside while leaving the inside perfectly moist.
—Bestreviews, Mercury News, 23 Oct. 2025
The depth of the convective region (how far convection extends down into the atmosphere) seems to be the deciding factor.
—Christopher McFadden, Interesting Engineering, 11 Oct. 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 6 Nov. 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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