- 1The production and discharge of something, especially gas or radiation: the effects of lead emission on health [count noun]: cuts in carbon dioxide emissionsMore example sentences
- This random emission of photons leaves the resulting electron beam with a fuzzy, rather than a sharply defined focus.
- Radioactivity is the process of emission of radiation as a radioactive material changes form, often to a different element.
- Radiation emission from mobile phones must be cut by 80 per cent, a group of UK MPs said yesterday.
- 1.1 [count noun] An ejaculation of semen: nocturnal emissionsMore example sentences
- Even well into this century, versions of this dire belief - that one's bodily supply of energy could be squandered by sexual emissions - hung on.
late Middle English (in the sense 'emanation'): from Latin emissio(n-), from emiss- 'sent out', from the verb emittere (see emit).