rhizoverbBeta
DictionaryemissionRelease from a source
noun

emission

ih-MISH-un/ɪˈmɪʃn/

The release of something from a source, or what is released.

The chimney's emission spreads a plume of gray gas into the clear air.

A factory chimney releases a plume of gray gas into clear air; crisp view of the release point.
Etymology
eLatinout
+missLatinto send
+ionLatinact or process

The pieces express “sending out.” Emission applies this idea to the giving off of substances or energy, such as gas, light, or heat.

In context

Jon Bowman1:39
because of excess greenhouse gas emission, especially from CO2 released by humans burning fossil fuels
The Great Global Warming Debate

More examples

  • Heating the material causes the emission of light.
  • The sensor detects gas emissions from the pipe.
  • Electric buses help reduce emissions on busy streets.

Forms

emission · emissions

emit verb — To give off or send out something.

Similar words

release
Broader term that also covers freeing something previously confined.
discharge
Often suggests liquid or waste flowing from an outlet.