WordNet (r) 3.0 (2006):

ibn-Sina
    n 1: Arabian physician and influential Islamic philosopher; his
         interpretation of Aristotle influenced St. Thomas Aquinas;
         writings on medicine were important for almost 500 years
         (980-1037) [syn: Avicenna, ibn-Sina, Abu Ali al-Husain
         ibn Abdallah ibn Sina]