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WordReference Random House Learner's Dictionary of American English © 2024con•vec•tion /kənˈvɛkʃən/USA pronunciation n. [uncountable]- Physicsthe transfer of heat by the circulation of heated liquid or gas:Does a room's radiator get its heat by convection?
con•vec•tion•al, adj. WordReference Random House Unabridged Dictionary of American English © 2024con•vec•tion (kən vek′shən),USA pronunciation n. - Physicsthe transfer of heat by the circulation or movement of the heated parts of a liquid or gas.
- Meteorologythe vertical transport of atmospheric properties, esp. upward (distinguished from advection).
- the act of conveying or transmitting.
- Late Latin convectiōn- (stem of convectiō) a bringing together. See convect, -ion
- 1615–25
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