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Convection definition
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when heat is transferred by the mass movement of molecules from one place to another. Definition for  Convection :The movement of heat by a moving liquid or gas. Convection results from the differences in the densities of a material at different temperatures. As a liquid or gas raises in temperature, it becomes less dense and thus lighter thereby rising above its cooler and denser counterparts, which in turn sink.

See also:
configuration (electronic) definition
control chart definition
computer-assisted training definition
condensation nucleus counter (CNC) definition
conceptual schema definition
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