資料來源 : WordNet®

al-Haytham
     n : an Egyptian polymath (born in Iraq) whose research in
         geometry and optics was influential into the 17th
         century; established experiments as the norm of proof in
         physics (died in 1040) [syn: {Alhazen}, {Ibn al-Haytham},
          {Al-Hasan ibn al-Haytham}]