Share this entry

Share this page

convection

Syllabification: con·vec·tion
Pronunciation: /kənˈvekSH(ə)n
 
/

Definition of convection in English:

noun

The movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat.
Example sentences
  • One possibility that must be considered is that the heat from the waste package could induce convection of the fluids within the host rock and enhance flow rates in the vicinity of the disposal.
  • In convection heat is transferred through air or fluid circulation.
  • There are only 3 ways that heat can be transferred - by conduction, convection, or radiation.

Origin

mid 19th century: from late Latin convectio(n-), from Latin convehere, from con- 'together' + vehere 'carry'.

Derivatives

convectional

1
adjective
Example sentences
  • In arid areas, the rainfall is caused by convectional instability through heating of the ground surface.
  • Its resulting temperature inertia greatly modifies the temperature regimes of adjacent land, largely by the convectional circulation of air.
  • We did not observe movements having a vectorial nature consistent with a convectional flow; however, the number of data points collected during our experiments may not have been large enough to identify this type of motion.

convective

2
Pronunciation: /-ˈvektiv/
adjective
Example sentences
  • This cycle is repeated over and over to generate what scientists call a convection cell or convective flow.
  • As long as the bird is resting and those feathers are sealed off, you do not have substantial free convection and easy convective movement-it is all conduction and radiation processes within the feathers.
  • The conditions required for tropical cyclones are also suitable conditions for thunderstorms, deep convective clouds with strong updraughts.

Definition of convection in:

Share this entry

Share this page

 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day emulous
Pronunciation: ˈemyələs
adjective
seeking to emulate or imitate someone or something