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
On Earth, pharmaceutical formulation is constantly disrupted by gravity via mechanisms like sedimentation, where heavy particles sink to the bottom of a test tube, and convection, where hot fluids rise and cold fluids sink.
—
Elsa Ohlen, CNBC, 9 June 2026
The super convection setting can reduce cooking time by 30 percent, and the user-friendly display makes operation a breeze.
—Bestreviews, Mercury News, 8 June 2026
Yang suspects that the same reactions that take place in a combustion engine could be occurring naturally within certain mini-Neptunes, producing PAHS that amalgamate as clouds of soot that then rise higher into the atmosphere, perhaps driven upwards by thermal convection currents.
—Keith Cooper, Space.com, 4 June 2026
But the convection setting doesn't speed up cooking by as much without that extra heating element.
—Brandee Gruener, Southern Living, 2 June 2026
See All Example Sentences for convection
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Elsa Ohlen, CNBC, 9 June 2026
The super convection setting can reduce cooking time by 30 percent, and the user-friendly display makes operation a breeze.
—Bestreviews, Mercury News, 8 June 2026
Yang suspects that the same reactions that take place in a combustion engine could be occurring naturally within certain mini-Neptunes, producing PAHS that amalgamate as clouds of soot that then rise higher into the atmosphere, perhaps driven upwards by thermal convection currents.
—Keith Cooper, Space.com, 4 June 2026
But the convection setting doesn't speed up cooking by as much without that extra heating element.
—Brandee Gruener, Southern Living, 2 June 2026
See All Example Sentences for convection
Cite this Entry
“Convection.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/convection. Accessed 16 Jun. 2026.
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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