Wiktionary
metadatum
n. One piece of metadata; a piece of information describing a piece of data.
Usage examples of "metadatum".
It will encompass 800 metadata elements and will tackle e-books, journals, audio, and video.
A DOI can be expressed as a URN (Universal Resource Name - IETF's syntax for generic resources) and is compatible with OpenURL (a syntax for embedding parameters such as identifiers and metadata in links).
The metadata include everything from the author's name through the book's title, edition, blurbs, sample chapters, other promotional material, links to related products, a rights and permissions profile, e-mail contacts, and active links to retailers' web pages.