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
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Merriam-Webster unabridged
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