Ab-Marwn Abd al-Malik ibn Zuhr (10941162 CE), better known in the West by his Latinized name Avenzoar, was an Arab-Muslim physician, surgeon and a contemporary of Averroes and Maimonides. He was born at Seville (now southwestern Spain) and was regarded as the most renowned physician of Al-Andalus.
Ibn Zuhr was known for his emphasis on a more rational, empiric basis of medicine. His major work, Al-Taysr fil-Mudwt wal-Tadbr ("Book of Simplification Concerning Therapeutics and Diet"), was translated into Latin and Hebrew and was influential to the progress of surgery. He also improved surgical and medical knowledge by keying out several diseases and their treatments.

Great physician, clinician and parasitologist and surgeon