EPROM ep·rom US/ˈɛprʌm/ uncommon noun 1. (computer science) a read-only memory chip that can be erased by ultraviolet light and programmed again with new data Synonymserasable programmable read-only memory Related words Broader terms read-only memory WordNet 2.1 (Princeton University). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved.