Convection

1. (anthropology) the movement of heat from an object to the surrounding fluid, either gas or liquid. Heat causes the fluid to move away from the object. Source: Anthromorphemics
2. (chemistry) Process by which, in a fluid being heated, the warmer part of the mass will rise and the cooler portions sink. This is also a component of the theory for continental drift, in that the circulating movements of crustal materials push the continents apart. [Journal of the Atmospheric Sciences. v 46, 1540, 1989.] [Journal of the Atmospheric Sciences. v 45, 2641, 1988.] Source: Atmospheric Chemistry Glossary