emission

US /ɪˈmɪʃən/

UK /iˈmɪʃn/

B2
n. (u.)Uncountable NounA substance (e.g. gas) released into the air
The car's emission is black in color
n. (u.)Uncountable NounThe act of emitting light or other radiation.
The bright emission from the supernova was visible for months.
n. (u.)Uncountable NounThe issue of shares or bonds to investors.
The company announced a new stock emission to raise capital.
n. (u.)Uncountable NounThe release of electrons from a heated surface.
Thermionic emission is used in vacuum tubes to generate electrons.

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