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Air heated by a space heater rises and is replaced by cool air, creating a convection current that circulates hot air throughout a room.


1. The act or process of conveying; transmission.
2. Physics
a. Heat transfer in a gas or liquid by the circulation of currents from one region to another.
b. Fluid motion caused by an external force such as gravity.
3. Meteorology The transfer of heat or other atmospheric properties by massive motion within the atmosphere, especially by such motion directed upward.

[Late Latin convectiō, convectiōn-, from convectus, past participle of convehere, to carry together : Latin com-, com- + Latin vehere, to carry; see wegh- in Indo-European roots.]

con·vec′tion·al adj.
con·vec′tive adj.
con·vec′tive·ly adv.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in periodicals archive ?
The second is a fast-moving atmospheric system known as a "convectively coupled Kelvin wave" that's affected by the earth's rotation.
"Steady MHD Boundary-layer Slip Flow and Heat Transfer of Nanofluid over a Convectively Heated of a Non-linear Permeable Sheet." Journal of Advanced Mechanical Engineering 3 (1): 1-14.
Ismail, "Scaling group transformation for MHD boundary layer slip flow of a nanofluid over a convectively heated stretching sheet with heat generation," Mathematical Problems in Engineering, vol.
The diurnal cycle of the MCSs reveals a clear nocturnal occurrence of MCSs during both convectively active periods.
In the lowest one, the fluid tends to be convectively unstable.
The heat generated is then convectively and conductively transported [24].
A consecutive air-node convectively linked to the primary CCS system air-node represents the condition of the air after it passes through the seat materials, thermal masses etc.
Considering the cooling panel as an individual surface, heat is exchanged convectively with room air and radiantly with other inner surfaces (floor and walls).
A flow is convectively unstable if the unsteady response to an impulsive perturbation grows along some rays that pass away from the forcing location but decays at the forcing location itself.
Makinde, "MHD nanofluid bioconvection due to gyrotactic microorganisms over a convectively heat stretching sheet," International Journal of Thermal Sciences, vol.
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