A piece of data or information that describes other data. Metadata includes, for example, information about the author, the creation date, or the content of a file. The common plural is 'Metadaten' (metadata).
example
Jedes Foto auf meinem Computer enthält als Metadatum die Information, wann und wo es aufgenommen wurde.
Every photo on my computer contains, as a metadata item, the information about when and where it was taken.
Usage tips
Word structure
The word consists of the Greek prefix 'Meta-' (which means 'about' or 'beyond') and 'Datum' (piece of information). So metadata is literally 'data about data'.
EXAMPLE
Die Metadaten einer E-Mail verraten, wann und von wem sie gesendet wurde.
The metadata of an email reveals when and by whom it was sent.
Singular and plural
In practice, the plural 'Metadaten' (metadata) is almost always used, since people usually talk about a collection of information. The singular 'das Metadatum' (the metadata item) is rare and refers to a single piece of information.
EXAMPLE
Die Software analysiert die Metadaten der Bilddateien.
The software analyzes the metadata of the image files.
Technical term
'Metadatum' (metadata item) is a technical term from computer science and the digital field. It is used when talking about the technical properties of files such as photos, documents, or music.
EXAMPLE
Um die Fotos zu sortieren, müssen wir die Metadaten bearbeiten.
To sort the photos, we need to edit the metadata.
Compare with
near_synonym · confusable
Metadatum vs Datum
date
'das Datum' and 'das Metadatum' can both be a piece of information that belongs to something else. The important difference is: in everyday language, 'das Datum' usually means a specific day in the calendar. 'das Metadatum' is information about other data, for example about a file: author, creation date, or file size. There is a risk of confusion because 'Datum' is also part of 'Metadatum', and the plural 'Daten' looks similar. For appointments and calendar days, you say 'Datum'. In technology, files, and databases, 'Metadatum' is more appropriate, usually in the plural 'Metadaten' (metadata).
Metadatum
In der Datei steht als Metadatum, wann das Foto erstellt wurde.
The file contains a metadata item showing when the photo was created.
Datum
Bitte schreib das Datum auf die Anmeldung, damit wir den Termin richtig eintragen können.
Please write the date on the application so that we can enter the appointment correctly.