Definition of convection
convectionalplay \kən-ˈvek-shnəl, -shə-nəl\ adjective
Recent Examples of convection from the Web
On Earth, that comes from the convection of molten iron in the outer core.
Elliott knew that this kind of geochemical information was previously believed to have been destroyed by early Earth melts and billions of years of subsequent mantle convection.
A machine called the BioRobot (imagine a convection oven) separates out the RNA and dollops it onto rectangular plates, which later go into a machine called an amplifier (imagine an office printer).
Mr. Holmes, Dr. Spackman and the aircraft commander, Ron Moyers, talked from time to time about course changes designed to get closer to the convection to obtain better data.
As the sun heats the area’s mountains, convection sucks in air from the Sonoran Desert, 1,700 feet below, bringing that steady, dry breeze in from the southwest.
Convection on the day side would lead to massive storms in the area directly beneath the Sun.
The waves are created when convection in the hot gas, or even sound waves, toss the existing magnetic fields around.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'convection'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of convection
Late Latin convection-, convectio, from Latin convehere to bring together, from com- + vehere to carry — more at way
First Known Use: circa 1623
CONVECTION Defined for English Language Learners
Definition of convection for English Language Learners
: movement in a gas or liquid in which the warmer parts move up and the colder parts move down; also : the transfer of heat by this movement
CONVECTION Defined for Kids
Definition of convection for Students
: motion in a gas (as air) or a liquid in which the warmer portions rise and the colder portions sink Heat can be transferred by convection.
Medical Definition of convection
1: the circulatory motion that occurs in a fluid at a nonuniform temperature owing to the variation of its density and the action of gravity
2: the transfer of heat by convection in a fluid
convectional\-shnəl, -shən-əl\play adjective
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