emission
noun
[ ɪˈmɪʃ(ə)n ]
• the production and discharge of something, especially gas or radiation.
• "the effects of lead emission on health"
Similar:
discharge,
release,
outpouring,
outflow,
outrush,
leak,
excretion,
secretion,
ejection,
emanation,
radiation,
exhalation,
exudation,
exuding,
venting,
effusion,
ejaculation,
disgorgement,
issuance,
issue,
oozing,
leaking,
Origin:
late Middle English (in the sense ‘emanation’): from Latin emissio(n- ), from emiss- ‘sent out’, from the verb emittere (see emit).