This is the 6166th most frequent Arabic word.
يصف
"يصف" means "to describe."
The verb يصف is used here to mean 'prescribes' or 'provides a description of' in a professional manner, in this case, within a medical setting.
يصف الطبيب الدواء للمريض.
The doctor prescribes medicine to the patient.
Here, يصف refers to the act of 'describing' or 'illustrating' emotionally or artistically, as used in literary contexts.
يصف الكاتب مشاعره في الرواية.
The author describes his feelings in the novel.
In this case, يصف is used to convey the action of 'explaining' or 'narrating' a personal experience or observation.