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n. - The transfer of heat through a fluid (liquid or gas) caused by molecular motion; (meteorology) the vertical movement of heat or other properties by massive motion within the atmosphere.

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Usage examples (35)
  • Controlling convection is much more effective, in which case, a thin barrier of an inert gas such as CO2 works well.
  • The technique is called convection-enhanced delivery.
  • "It's so hot that it makes a kind of fire weather called a convection column.
  • The sideways movement is actually caused by what's known as convection currents in the mantle.
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