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met·a·da·ta(mĕt′ə-dā′tə, -dăt′ə, -dä′tə)
pl.n. (used with a sing. or pl. verb)
Data that describes other data, as in describing the origin, structure, or characteristics of computer files, webpages, databases, or other digital resources.
(Communications & Information) computing information that is held as a description of stored data
Information about information; more specifically, information about the meaning of other data. See also data; information.