Possessive Determiner
A determiner used in front of a noun to express possession or belonging, e.g. my book, his coat, our house, your car, its colour, their culture.
The possessive determiners in English are my, your, his, her, its, our and their.
Possessive Determiners are sometimes called Possessive Adjectives or Possessive Pronouns.
They are called Possessive Adjectives as they are used with nouns and do the work of adjectives, e.g.
This is my pen.
Those are your pens.
That is his pen.
In the following sentences the words in italics are Possessive Pronouns:-
This notebook is mine.
Those notebooks are yours.
That notebook is hers.
That plan of yours is wonderful.