You searched for: “convection
convection (s) (noun), convections (pl)
1. The movement in a gas or liquid in which the hotter parts move upward and the colder elements go down: The chemist explained that convection consists of "circulatory movements" that are related to the rising of the warmer, less dense particles; and the sinking of cooler, more dense particles.
2. Etymology: from Late Latin convectio which comes from convehere, "to carry, to bring together".
This entry is located in the following units: -tion (page 7) veh-, vect- (page 1)
Word Entries containing the term: “convection
atmospheric convection current (s) (noun), atmospheric convection currents (pl)
The vertical movement of air currents resulting from temperature variations: Mr. Air explained the facts concerning atmospheric convection currents and that they arose from the changing differences in heat and cold in the atmosphere.
This entry is located in the following units: atmo-, atm- + (page 3) sphero-, spher-, -sphere- (page 2)
convection oven (s) (noun), convection ovens (pl)
A cooking device that moves hot air around so food can cook more evenly: Greg's mother used a convection oven which produced better quality meals then those cooked on top of stoves.
This entry is located in the following unit: veh-, vect- (page 1)
mantle convection
An assumed process deep within the earth in which hotter materials move toward the surface while cooler materials are sent back down to the interior.

Mantle convection has been compared to the motions which occur inside a pot of boiling tar.

Heat which is supplied from below lowers the viscosity of the tar and causes it to rise slowly to the surface, where it cools and sinks o the bottom to be reheated.

The "skin" which forms on the top is similar to the earth's lithosphere.

—Partially compiled from information located in
Physical Geology by Anatole Dolgoff; Houghton Mifflin Company;
Boston, Massachusetts; 1998; page 133.
This entry is located in the following unit: mantel-, mantle-, -manteau + (page 1)
thermohaline convection (s) (noun), thermohaline convections (pl)
The vertical movement of a layer of water caused by changes in the temperature-salinity relationship resulting in it becoming heavier than the water below it: Thermohaline convection is a kind of hydrodynamic instability and arrises due to one layer becoming colder or more saline, or both, and thus more dense.
whole-mantle convection
The theory that the entire mantle, of hot land soft rocks, circulates and mixes in the course of bringing heat from the outer core to the surface.
This entry is located in the following unit: mantel-, mantle-, -manteau + (page 2)
Word Entries at Get Words: “convection
convection
1. The vertical movement of energy or mass by circulating currents.
2. The transfer of heat through a fluid by the motion of the fluid itself.

Such motion is usually in the form of currents, in which the hotter, less dense material rises to be replaced below by cooler, denser material.

This entry is located in the following unit: Astronomy and related astronomical terms (page 7)
convection
The transfer of heat caused by the movement of heated material.

In clouds, convection is the up-and-down movement of air caused by heat gradients or areas of different temperatures.

This entry is located in the following unit: Meteorology or Weather Terms + (page 3)