Convection

Double click on any word to get a popup explanation of the word and sample sentences
Dictionary | Wikipedia | Synonyms | News

Convection Meaning and Definition in Dictionary

Definitions from Wordnet 2.0


  • the transfer of heat through a fluid (liquid or gas) caused by molecular motion
  • (meteorology) the vertical movement of heat or other properties by massive motion within the atmosphere

Definitions from Wiktionary


  • the transfer of heat through a fluid (liquid or gas) caused by molecular motion ,
  • (meteorology) the vertical movement of heat or other properties by massive motion within the atmosphere

Would you like to add your own explaination to this word 'Convection'?

Convection Meaning and Definition in Wikipedia


A convection current is caused by the expansion (becoming bigger) of a liquid or gas due to its rise in temperature. The material becomes less heavy than the material around it and rises. As it gets colder, it starts to get heavier, which causes it to fall or sink. This starts the cycle (process) of a convection current. This only happens to fluids that are near an energy source that causes it to become bigger. For example, the movement of water in a pan is driven by a fixed heat source. When cool water goes to an edge of a pie pan, the water is dense. It flows around and back to the center. As the water nears the hot metal, it warms again and rises as steam to repeat the cycle. The hot fluid becomes less dense and rises so molecules are carried to a new location. Energy in hot fluid transfers away, fluid contracts becoming more dense, and the fluid flows downward again.



Words and phrases related to 'Convection'



Convection Sample Sentences in News


  • Convection ovens offer speedier cooking option
    Baking and oven are words, and ideas, that are inextricably linked together. This mode of cooking is probably the second most used after “cooking” on range top, or whatever kind of heat source one uses to prepare food. Read more on this news related to 'Convection'
  • ANN's Daily Aero-Term (09.04.14): Elevated Convection
    Convection occurring within an elevated layer, i.e., a layer in which the lowest portion is based above the earth's surface. Elevated convection often occurs when air near the ground is relatively cool and stable, e.g., during periods of isentropic lift, when an unstable layer of air is present aloft. Read more on this news related to 'Convection'
  • Miranda: An icy moon deformed by convection
    ( Geological Society of America ) Miranda, a small, icy moon of Uranus, is one of the most visually striking and enigmatic bodies in the solar system. Despite its relatively small size, Miranda appears to have experienced an episode of intense resurfacing that resulted in the formation of at least three remarkable and unique surface features -- polygonal-shaped re Read more on this news related to 'Convection'

Want to be famous? Add your definition to the meaning of 'Convection'


Search for more meaning of 'Convection' on the web