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Opacity

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Opacity or opaque may refer to:

  • Impediments to (especially, visible) light:
    • Opacities, absorption coefficients
    • Opacity (optics), property or degree of blocking the transmission of light
  • Metaphors derived from literal optics:
    • Opaque context, a term to describe the linguistic context of co-referential terms
    • Phonological opacity, a term in phonology
    • Opaque travel inventory, the market of selling unsold travel inventory at a discounted price
  • Musical works:
    • Opacity (album)
    • Opacities (EP)
  • Computer science:
    • Measure of obscuration of background by "painting" an image, e.g. alpha channel
    • Use of an opaque data type
    • Property attributed to data that can be interpreted only by using an external entity, e.g. magic cookie technology
    • Opaque binary blob, a network-engineering and computer-science technology
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