- the transfer of heat by the circulation or movement of the heated parts of a liquid or gas.
- the vertical transport of atmospheric properties, especially upward (distinguished from advection).
- the act of conveying or transmitting.
- a process of heat transfer through a gas or liquid by bulk motion of hotter material into a cooler region
- the process by which masses of relatively warm air are raised into the atmosphere, often cooling and forming clouds, with compensatory downward movements of cooler air
- the slow circulation of subcrustal material, thought to be the mechanism by which tectonic plates are moved
