‖n. pl. [ L. pl. of datum. ] 1. See Datum. [ 1913 Webster ]

2. a collection of facts, observations, or other information related to a particular question or problem; as, the historical data show that the budget deficit is only a small factor in determining interest rates. The term in this sense is used especially in reference to experimental observations collected in the course of a controlled scientific investigation. [ PJC ]

3. (Computers) information, most commonly in the form of a series of binary digits, stored on a physical storage medium for manipulation by a computer program. It is contrasted with the program which is a series of instructions used by the central processing unit of a computer to manipulate the data. In some conputers data and execuatble programs are stored in separate locations. [ PJC ]

n. an organized body of related information. [ WordNet 1.5 ]

adj. relying on observation or experiment.
Syn. -- experimental, observational. [ WordNet 1.5 ]

a. That may be dated; having a known or ascertainable date. “Datable almost to a year.” The Century.
Syn. -- dateable. [ 1913 Webster ]

‖n. [ LL., fr. L. datum given. ] (R. C. Ch.) Formerly, a part of the Roman chancery; now, a separate office from which are sent graces or favors, cognizable in foro externo, such as appointments to benefices. The name is derived from the word datum, given or dated (with the indications of the time and place of granting the gift or favor). [ 1913 Webster ]

n. [ LL. datarius. See Dataria. ] 1. (R. C. Ch.) An officer in the pope's court, having charge of the Dataria. [ 1913 Webster ]

2. The office or employment of a datary. [ 1913 Webster ]