n.
Pronunciation: k ə n- ' vek-sh ə n
Function: noun
Etymology: Late Latin convection-, convectio, from Latin convehere to bring together, from com- + vehere to carry ― more at WAY
Date: circa 1623
1 : the action or process of conveying
2 a : the circulatory motion that occurs in a fluid at a nonuniform temperature owing to the variation of its density and the action of gravity b : the transfer of heat by convection ― compare CONDUCTION , RADIATION
– con · vec · tion · al \ -shn ə l, -sh ə -n ə l \ adjective