emission

US /iˈmɪʃ.ən/
UK /iˈmɪʃ.ən/
"emission" picture
1.

the production and discharge of something, especially gas or radiation

:
The factory reduced its carbon emissions.
Vehicle emissions contribute to air pollution.
2.

a formal issue or publication of something

:
The latest emission of the journal features new research.
The government announced the emission of new bonds.