luminosity
luminosity 英 [ˌlu:mɪ'nɒsətɪ] 美 [ˌluːmɪˈnɒsəti]
n. [光][天] 光度；光明；光辉
名词复数:luminosities
- Luminosity is the quality of something that gives off light or shines with reflected light. The most noticeable quality of a large, sparkly diamond is its luminosity.
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- n. [光][天] 光度；光明；光辉
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1. Astronomers describe star brightness in terms of magnitude and luminosity.
天文学家用星等和光度来描述恒星的亮度。
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2. They have never known that ghastly luminosity, that stabbing and searing glare which makes the background of permanent pain to our lives.
他们从来没有认识的上帝那令人惧怕的光明，以那样刺痛，灼热，令人炫目的光明为背景永远地折磨着我辈。
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3. Simply move your mouse around to change the color, scroll to change the luminosity and click to copy the values to your clipboard.
只需轻轻移动鼠标去改变颜色，滚动一下改变亮度，然后点击复制数值到粘贴板上，大功告成矣。
- luminosity (n.) 1630s, "quality of being luminous," from French luminosité (cognate with Medieval Latin luminositas "splendor") or else a native formation from luminous + -ity. Meaning "intensity of light in a color" (of a flame, spectrum, etc.) is from 1876. In astronomy, "intrinsic brightness of a heavenly body" (as distinguished from apparent magnitude, which diminishes with distance), attested from 1906.
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