brightness level

Từ điển Oxford Learners Wordfinder Dictionary

noun

the quality of being luminous;
emitting or reflecting light
- its luminosity is measured relative to that of our sun
• Syn:
luminosity, brightness, luminance, luminousness, light
• Derivationally related forms:
light (for: light), bright (for: luminousness), bright (for: brightness), luminous (for: luminosity)
• Hypernyms:
physical property
• Hyponyms:
illuminance, illumination, incandescence, luminescence, glow
• Attrubites:
bright, dull