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 act of conveying from one place to another; the act of transferring or the fact of being transferred.
The process by which emotions and desires, originally associated with one person, such as a parent, are unconsciously shifted to another.