释义 |
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
con•vec′tion•al, adj. Collins Concise English Dictionary © HarperCollins Publishers:: convection /kənˈvɛkʃən/ n - a process of heat transfer through a gas or liquid by bulk motion of hotter material into a cooler region
Compare conduction - the process by which masses of relatively warm air are raised into the atmosphere, often cooling and forming clouds, with compensatory downward movements of cooler air
Etymology: 19th Century: from Late Latin convectiō a bringing together, from Latin convehere to bring together, gather, from vehere to bear, carryconˈvectional adj conˈvective adj |