opacity

Etymology

opaque + -ity, from French opacité, from Latin opacitas.

noun

  1. (uncountable) The state or quality of being opaque, not allowing light to pass through
    We could not see the sandbar due to the opacity of the muddy water.
  2. (uncountable) The state or quality of being inaccessible to understanding.
    The opacity of these decisions is troubling.
  3. (optics, countable) A measure of relative impenetrability to electromagnetic radiation such as light.
    The opacity of a clean glass window is near zero.

Attribution / Disclaimer All definitions come directly from Wiktionary using the Wiktextract library. We do not edit or curate the definitions for any words, if you feel the definition listed is incorrect or offensive please suggest modifications directly to the source (wiktionary/opacity), any changes made to the source will update on this page periodically.