Main Entry:

con·vec·tion

Pronunciation:

\kən-ˈvek-shən\

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 conveying2 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 \-shnəl, -shə-n^əl\ adjective