Meaning of convection

con•vec•tion

Pronunciation: (kun-vek'shun), [key]
— n.
  1. the transfer of heat by the circulation or movement of the heated parts of a liquid or gas.
  2. 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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