Noun
programmable read only memory (usually uncountable, plural programmable read only memories)
Alternative spelling of programmable read-only memory
programmable read-only memory (usually uncountable, plural programmable read-only memories)
(electronics) A type of read-only memory which can be written to once (write-once read-many memory/WORM), and thereafter becomes fixed in value.
Synonym: (abbreviation) PROM
programmable read-only memory