Definition of Convection

1. Noun. The transfer of heat through a fluid (liquid or gas) caused by molecular motion.

Generic synonyms: Temperature Change

2. Noun. (meteorology) the vertical movement of heat or other properties by massive motion within the atmosphere.
Category relationships: Meteorology
Generic synonyms: Action, Activity, Natural Action, Natural Process
Derivative terms: Convect

Definition of Convection

1. n. The act or process of conveying or transmitting.

Definition of Convection

1. Noun. The process of conveying something. ¹

2. Noun. (physics) The transmission of heat in a fluid or gas by the circulation of currents. ¹

3. Noun. (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. ¹

¹ Source:

Definition of Convection

1. [n -S]

Medical Definition of Convection

1. Transmission of energy or mass by a medium involving movement of the medium itself. The circulatory movement that occurs in a fluid at a nonuniform temperature owing to the variation of its density and the action of gravity. (12 Dec 1998)

Convection Pictures

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Lexicographical Neighbors of Convection

convalescent carrier
convalescent serum
convection (current term)
convection cell
convection cells
convective current
convective heat

Literary usage of Convection

Below you will find example usage of this term as found in modern and/or classical literature:

1. A Text-book of Physics: Heat by John Henry Poynting, Joseph John Thomson (1906)
"Water Heating Systems — Ocean Currents —convection in Oases—convection Currents in the Atmosphere -Winds—Land and Sea Breezes—Trade.Winds—Water. ..."

2. Physics of the Air by William Jackson Humphreys (1920)
"convection.—The vertical movements of the air, whether up or down, in an extra-tropical cyclone, or between such a cyclone and a neighboring anticyclone, ..."

3. Electrical Papers by Oliver Heaviside (1894)
"General Theory of convection Currents. 8. Now leaving behind altogether the subject of current-elements, in the investigation of which one is liable to be ..."

4. Report of the Annual Meeting (1880)
"For the case of convection of electricity, either automatically, by self-repulsion ... The identity may be generalised to all cases of convection-currents. ..."

5. An Elementary Treatise on Heat by Balfour Stewart (1876)
"extent to which the liquid expands under heat; thus, for instance, if a body hardly expanded at all its convection would be very feeble. ..."

6. The Retrospect of Medicine by William Braithwaite (1870)
"The convection of sound, on the other hand, is its transference from one place to ... Conduction depends on atomic movement; convection on movement in mass. ..."

7. A Text Book of the Principles of Physics by Alfred Daniell (1885)
"When a hot body is placed in air it sets up a number of convection currents. ... In an undisturbed atmosphere the law of cooling by convection is, ..."

8. Contributions to Molecular Physics in the Domain of Radiant Heat: A Series by John Tyndall (1873)
"Influence of Density on convection. — Internal Friction of Air- In his paper on the conduction of heat by gases, Professor Magnus has adduced some striking ..."

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