The vertical movement of heat and moisture, especially by updrafts and downdrafts in an unstable air mass. The terms convection and thunderstorm are often used interchangeably, although thunderstorms are only one form of convection. Towering cumulus clouds are visible forms of convection.
The transmission of heat in a fluid by the circulation of currents.
The assigning of addresses to variables either at linkage editing, or at runtime.
The act of moving from one place to another.
Renewal of a lease.