luminosity

US /ˌluːmɪˈnɒsəti/

UK /ˌlu:mɪ'nɒsətɪ/

B2 中高級
n. (c./u.)名詞 (可數/不可數)發光
Although the stars themselves are very far away, their luminosity is obvious on a clear night
n. (c./u.)名詞 (可數/不可數)光度 (物理學)
The luminosity of a star is the total amount of energy it emits per unit time.
n. (c./u.)名詞 (可數/不可數)明度
Adjusting the luminosity of the screen can reduce eye strain.
n. (c./u.)名詞 (可數/不可數)發光度
The artist captured the luminosity of the sunset in her painting.

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