Dreye权威释义 | luminosity

n.

发光，光明
光度
As a planet, the moon has a higher luminosity than most other planets.
作为一个星球，月亮的光度非常高。
发光体

同义参见:

以上来源于：《英汉大辞典》

n.

(pl. luminosities)

luminous quality.

▸Astronomy the intrinsic brightness of an object (as distinct from its apparent brightness).

以上来源于：《简明牛津英语词典》