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al-haytham
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Noun al-haytham has 1 sense
  1. Alhazen, al-Haytham, Ibn al-Haytham, Al-Hasan ibn al-Haytham - 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)
    --1 is a kind of mathematician; physicist; astronomer, uranologist, stargazer
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