This is the 4067th most frequent Catalan word.
descrit
"Descrit" means "described" in English.
The word 'descrit' here is in the past participle form, used in passive voice construction to indicate how the book was characterized by others.
Aquest llibre ha estat descrit com una obra mestra.
This book has been described as a masterpiece.
In this sentence, 'descrit' functions as a past participle, describing the action of describing something done by the subject in the sentence.
El que he descrit m'ha impressionat profundament.
What I have described has deeply impressed me.
Here, 'descrit' is used in a perfect tense construction to denote an action that was completed in the past relative to another past action.