luminosity /ˌluːmɪˈnɒsɪtɪ/

• 1.  

  N-UNCOUNT（不可数名词） The luminosity of a star or sun is how bright it is. (星体或太阳的)光度; 亮度 [技术]

  例：

  For a few years its luminosity flared up to about 10,000 times the present-day luminosity of the Sun.

  有几年它的亮度一度达到了现在的太阳亮度的一万倍左右。

• 2.  

  N-UNCOUNT（不可数名词） You can talk about the luminosity of someone's skin when it has a healthy glow. (皮肤的)放光; 光亮

  例：

  Ultrafine powder with a rosy tinge gives the skin warmth and luminosity.

  带玫瑰色的超细扑粉让皮肤显得温暖而有光泽。