specularity

/ˌspɛkjəˈlɛrəti/
noun
  1. The property of reflecting light like a mirror; shininess or glossiness.
    • The specularity of the polished marble floor made it look like water.
    • The car's paint had a high specularity, creating bright reflections.
    • In 3D modeling, adjusting specularity changes how shiny a surface appears.
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