/ Dictionary / Index C core memory: Meaning and Definition of Find definitions for: core' mem"ory Pronunciation: [key] — Computers. Computers. the main memory of a computer that uses the magnetization of small ferrite rings to store data. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. coremaker coremium Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language