A convection cell is a term used to describe the movement of hot and cold fluids or gases in a circular pattern. This process plays an important role in many natural phenomena such as the movement of air in the atmosphere and the circulation of water in the ocean. Though commonly used in scientific contexts, there are some synonymous terms that can be used to describe this process. These include convection pattern, thermal circulation, and circulation loop. Each term highlights different aspects of the same process, but all refer to circular movement of hot and cold fluids in a substance.