Pronunciation: (dā'tu, dat'u, dä'tu),[key] —n. 1. a pl. of datum. 2. (used with a pl. v.) individual facts, statistics, or items of information: These data represent the results of our analyses. Data are entered by terminal for immediate processing by the computer. 3. (used with a sing. v.) a body of facts; information: Additional data is available from the president of the firm.