Dictionary![]() ![]() con•vec•tionPronunciation: (kun-vek'shun), [key] —n. 1. Physics.the transfer of heat by the circulation or movement of the heated parts of a liquid or gas. 2. Meteorol.the vertical transport of atmospheric properties, esp. upward (distinguished from advection). 3. the act of conveying or transmitting. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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