photoelectric
related to the release of electrons from a surface in the process of lighting
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كهرضوئي
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photometry
the scientific measurement of light in terms of its intensity, color, and other properties
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المضوائية
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phosphorescence
a light that is released for a long period of time even after its source energy is gone or finished
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التفسفر الوميض الفوسفوري
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biennial
(of a plant) growing during the first year of its life, producing fruits or flowers and die in the second year
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كل سنتين
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bigamy
the act of marrying one person while still legally married to another
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مضارة
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legionary
a soldier who fights in a very large group that is a part of an army called legion
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الفيلق
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