EPROM Syllabification: (EPROM)Pronunciation: /ˈēˌpräm/Definition of EPROM noun Electronics a read-only memory whose contents can be erased by ultraviolet light or other means and reprogrammed using a pulsed voltage. Origin: 1970s: acronym from erasable programmable ROMEPROM in other Oxford dictionaries Definition of EPROM in the British & World English dictionary