photoelectric
related to the release of electrons from a surface in the process of lighting

فتوالکتریک, نوری و برقی
[صفت]
photometry
the scientific measurement of light in terms of its intensity, color, and other properties

نورسنجی, فتومتری، شیدسنجی
[اسم]
phosphorescence
a light that is released for a long period of time even after its source energy is gone or finished

شبتابی, روشنایی، تابندگی فسفری
[اسم]
acumen
the quality of having a sharp sense of judgment and decision-making

تیزهوشی, تیزفهمی، فراست
[اسم]
biennial
(of a plant) growing during the first year of its life, producing fruits or flowers and die in the second year

دوساله
[صفت]

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