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English definition of “emission”

emission

noun [C, U]     /ɪˈmɪʃən/
the act of sending gas, heat, light, etc. out into the air, or an amount of gas, heat, light, etc that is sent out: Carbon dioxide emissions will be reduced by 20%.Environmental issuesRubbish and wasteProtection and protectorsEmitting and ejecting
(Definition of emission noun from the Cambridge Learner's Dictionary © Cambridge University Press)

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