| Meaning, pronunciation, translations and examples Data bank definition: A data bank is the same as a → database . a fund of information on a particular subject or group of related subjects, usually stored in and used via a computer system. data bank definition: 1. a large collection of information that can be searched through quickly, especially by a computer…. Recent Examples on the Web The public can search the data bank for state or national numbers, but not the names of doctors disciplined. Data bank definition is - database. Learn more.