Convection meaning

kən-vĕk'shən
The transfer of heat or other atmospheric properties by massive motion within the atmosphere, especially by such motion directed upward.
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A transmitting or conveying.
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The act or process of conveying; transmission.
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Convection is defined as the act of moving, transmitting or conveying.

An example of convection is the moving of liquid.

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Heat transfer in a gas or liquid by the circulation of currents from one region to another.
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Fluid motion caused by an external force such as gravity.
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The mass movement of portions of a fluid within the fluid, caused by differences in density.
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The transfer of heat by its absorption by a fluid at one point, followed by motion of the fluid and rejection of the heat at another point.
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Designating or of an oven, grill, etc. that circulates the hot air continuously, by means of a fan, for faster, more even cooking.
adjective
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Current in a fluid caused by uneven distribution of heat. For example, air on a part of the Earth's surface warmed by strong sunlight will be heated by contact with the ground and will expand and flow upward, creating a region of low pressure below it; cooler surrounding air will then flow in to this low pressure region. The air thus circulates by convection, creating winds.
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The process of conveying something.
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(physics) The transmission of heat in a fluid or gas by the circulation of currents.
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The definition of convection is cooking faster, at a lower temperature and evenly.

An example of convection used as an adjective is the phrase convection oven which means an oven that blows lower temperature air directly onto the food.

adjective
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(meteorology) The vertical movement of heat and moisture, especially by updrafts and downdrafts in an unstable air mass. The terms convection and thunderstorm are often used interchangeably, although thunderstorms are only one form of convection. Towering cumulus clouds are visible forms of convection.
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Origin of convection

Late Latin convectiō convectiōn- from convectus past participle of convehere to carry together Latin com- com- Latin vehere to carry wegh- in Indo-European roots