electronic database elect·ro·nic·database uncommon noun 1. (computer science) a database that can be accessed by computers Synonymselectronic databaseon-line databasecomputer databaseelectronic information service Related words Broader terms database Narrower terms relational databaseobject-oriented databaselexical database WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.