filtrede

Filtrede is a Danish term used as an adjective to describe something that has undergone filtration, such as a liquid or data set that has been filtered.

It is derived from the verb filtrere. In modern Danish the ordinary past participle of filtrere is filtreret; filtrede is therefore best understood as a regional, historical, or stylistic variant rather than a standard form. Some dictionaries may list filtrede as archaic or dialectal.

Usage examples include “filtrede vand” for water that has passed through a filter. In data processing contexts, “filtrede data” may be used, though “filtreret data” is more typical in formal prose.

Related terms include filtrering, filtration, and filter; see also filtrere (to filter).