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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.
References in periodicals archive ?
NxThera's FDA cleared RezE1/2m System to treat BPH uses radiofrequency energy to create sterile water vapor, or steam, to convectively deliver targeted, precise thermal energy treatments in a simple procedure with minimal discomfort, and provide improvements in LUTS symptoms, urine flow and quality of life.
In configuration B, the reactive gas convectively flowed through the foam.
The remainder moves convectively on, within its deep-rock host, laterally through the depths until, a few hundred million years later, it return as molten rock through submarine volcanic vents and renews the ocean floor.
It changes the distribution of energy in the troposphere so that it becomes more convectively stable," Nature quoted Ricke, as saying.
The injected steam flows convectively to the outer edges of the chamber and releases its latent heat to the cool oil sand at the edges warming the oil, rock, and connate water.
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