emission

Meanings

1. 1
   noun

   A gas or substance released into the air, especially a polluting one.

   The new law aims to cut carbon emissions from factories.

2. 2
   noun

   The act of sending out light, heat, gas, or similar.

   Scientists measured the emission of light from the distant star.

First attested in 1607. From Middle French émission, from Latin ēmissiō (“sending forth”), from ēmittō (“send out”), from ex (“from, out of”) + mittō (“send”).

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