Origin: Latin suffix -tion
Convection has 3 different meanings across 1 category:
the transfer of heat through a fluid (liquid or gas) caused by molecular motion
"As the hot air rises and cooler air sinks, convection circulates warmth throughout the entire room."
(meteorology) the vertical movement of heat or other properties by massive motion within the atmosphere
"The meteorologist explained that the sudden drop in pressure was caused by a powerful convection cell lifting warm air rapidly from the surface."
The process of conveying something.
"The new marketing campaign relies on convection to spread our brand message across social media platforms."