What is the meaning of Predicative?

Modifying a noun from within a predicate phrase. contrasts with attributive.

An element of the predicate of a sentence which complements the subject or object by means of the verb. Predicatives may be nominal or adjectival.

In some languages, a special part of speech used as a predicate and denoting a state of being.

feminine plural of predicativo

Source: wiktionary.org