luminosity

n. 光明, 光辉, 光度, 亮度 [计] 亮度

发音

US

词形变化

luminosities 复数 luminosities

别名

luminousity

释义与例句

n.
  1. 1.

    the state of being luminous, or a luminous object; brilliance or radiance

    不可数 可数
  2. 2.

    the ratio of luminous flux to radiant flux at the same wavelength; the luminosity factor

    可数 不可数 物理
  3. 3.

    The rate at which a star radiates energy in all directions.

    可数 不可数 天文

词汇关系

名词

同义词 4

light brightness luminance luminousness

上位词 1

physical property

下位词 5

glow illumination illuminance incandescence luminescence

相关短语

luminosity distance luminosity distances luminosity function Eddington luminosity solar luminosity

词源

Borrowed from French luminosité or else a native formation from luminous + -ity.

来源：wiktionary