Definition of convection noun from the Oxford Advanced Learner's Dictionary



BrE BrE//kənˈvekʃn//
; NAmE NAmE//kənˈvekʃn//
[uncountable] (specialist)
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the process in which heat moves through a gas or a liquid as the hotter part rises and the cooler, heavier part sinks convection currents Word Originmid 19th cent.: from late Latin convectio(n-), from Latin convehere, from con- ‘together’ + vehere ‘carry’.
See the Oxford Advanced American Dictionary entry: convection

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