| NOUN | person | Ibn al-Haytham, Alhazen, Alhacen, 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 |
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| Meaning | 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). | |
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| Synonyms | Alhazen, Alhacen, al-Haytham, Al-Hasan ibn al-Haytham | |
| Instance of | astronomer, uranologist, stargazer | A physicist who studies astronomy |
| mathematician | A person skilled in mathematics | |
| physicist | A scientist trained in physics | |
| Spanish | Alhacen, Ibn al-Haytham | |
| Catalan | Ibn al-Hàytham | |
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