brightness (noun)

  • 1brightness — bright ► ADJECTIVE 1) giving out much light, or filled with light. 2) (of colour) vivid and bold. 3) intelligent and quick witted. 4) (of sound) clear and high pitched. 5) cheerfully lively. 6) (of prospects) good. ● …

    English terms dictionary

  • 2brightness level — 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: ↑ …

    Useful english dictionary

  • 3brightness — noun 1. the location of a visual perception along a continuum from black to white (Freq. 11) • Ant: ↑dullness • Derivationally related forms: ↑bright • Hypernyms: ↑light, ↑lightness …

    Useful english dictionary

  • 4brightness constancy — noun the tendency for a visual object to be perceived as having the same brightness under widely different conditions of illumination • Hypernyms: ↑constancy, ↑perceptual constancy …

    Useful english dictionary

  • 5brightness — noun Date: before 12th century 1. a. the quality or state of being bright; also an instance of such a quality or state b. luminance 2. the attribute of light source colors by which emitted light is ordered continuously from light to dark in… …

    New Collegiate Dictionary

  • 6brightness — noun a) the quality of being bright b) the perception elicited by the luminance of an object …

    Wiktionary

  • 7brightness — /ˈbraɪtnəs/ (say bruytnuhs) noun 1. bright quality. 2. the quality of being intelligent or clever. 3. luminosity apart from hue; value. Pure white is of maximum brightness and pure black is of zero brightness. 4. Physics the amount of light that… …

  • 8apparent brightness — noun The brightness of a star as measured by an observer, as opposed to its intrinsic brightness when corrected for distance or absorption …

    Wiktionary

  • 9intrinsic brightness — noun The brightness a star would have if not attenuated by distance or intervening gas or dust. As opposed to apparent brightness which it has as measured at a distance …

    Wiktionary

  • 10radio brightness — noun the strength of a radio wave picked up by a radio telescope (Freq. 2) • Hypernyms: ↑intensity, ↑strength, ↑intensity level …

    Useful english dictionary