Air heated by a space heater rises and is replaced by cool air, creating a convection current that circulates hot air throughout a room.
con·vec·tion
(kən-vĕk′shən)n.
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.
convection
(kənˈvɛkʃən)n
1. (General Physics) a process of heat transfer through a gas or liquid by bulk motion of hotter material into a cooler region. Compare conduction1
2. (Physical Geography) meteorol the process by which masses of relatively warm air are raised into the atmosphere, often cooling and forming clouds, with compensatory downward movements of cooler air
3. (Geological Science) geology the slow circulation of subcrustal material, thought to be the mechanism by which tectonic plates are moved
[C19: from Late Latin convectiō a bringing together, from Latin convehere to bring together, gather, from vehere to bear, carry]
conˈvectional adj
conˈvective adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
con•vec•tion
(kənˈvɛk ʃən)n.
1. the transfer of heat by the circulation or movement of the heated parts of a liquid or gas.
2. the vertical transport of atmospheric properties, esp. upward (disting. from advection).
3. the act of conveying or transmitting.
[1615–25; < Late Latin]
con•vec′tion•al, adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
Air heated by a space heater rises, then cools and falls to be heated and rise again. This cycle creates a convection current that circulates hot air throughout a room.
con·vec·tion
(kən-vĕk′shən) The transfer of heat energy through liquids and gases by the movement of molecules. When molecules of the liquid or gas come in contact with a source of heat, they move apart and away from the source of heat, and cooler molecules take their place. Eventually, as the cooler molecules are heated, they move as well, and a convection current forms, transferring the heat. See Note at conduction.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
convection
the vertical movement of elements of the atmosphere. Cf. advection.
See also: Atmosphere-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.
convection
1. The upward motion of a body of air which transfers heat from ground level to the upper part of the atmosphere.
2. Heat transfer by means of currents circulating through fluids.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
ThesaurusAntonymsRelated WordsSynonymsLegend:
| Noun | 1. |  convection - the transfer of heat through a fluid (liquid or gas) caused by molecular motiontemperature change - a process whereby the degree of hotness of a body (or medium) changes |
| 2. | convection - (meteorology) the vertical movement of heat or other properties by massive motion within the atmosphere meteorology - the earth science dealing with phenomena of the atmosphere (especially weather) natural action, natural process, action, activity - a process existing in or produced by nature (rather than by the intent of human beings); "the action of natural forces"; "volcanic activity" |
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
إنْتِقال الحَرارة بِالحَمْل، نَقل حَراري
prouděnívedení
konvektionvarmestrømning
hõáramlás
varmaburîur
konvekcija
konvekcija
prúdenie
iletimkonveksiyon
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005
convection
[kənˈvɛkʃən] n → convection f
modif [current, cell] → de convection convection ovenconvection oven n → four m à convection
Collins English/French Electronic Resource. © HarperCollins Publishers 2005
convection
n → Konvektion f
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995
convection
(kənˈvekʃən) noun the passing of heat through liquids or gases by means of currents.
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.