metadata
//ˈmɛtəˌdeɪtə//
Noun
1
Data that provides information about other data, such as the author, date created, file size, or format of a document or file.
The metadata of this photo includes the date it was taken and the camera model.
2
A set of descriptive information that summarizes basic characteristics of a resource, used for identification, organization, and retrieval purposes.
The library system uses metadata to help users find books by title, author, or subject.