noun
1. : the issuing of electrons from a substance (as in photoelectric, thermionic, or radioactive processes)
2. : the rate of electron emission
noun
1. : the issuing of electrons from a substance (as in photoelectric, thermionic, or radioactive processes)
2. : the rate of electron emission
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012