opacity
Pronunciation:
/oʊˈpæsɪtiː/noun
Definitions
The state or quality of being opaque, not allowing light to pass through
Example: We could not see the sandbar due to the opacity of the muddy water.
The state or quality of being inaccessible to understanding.
Example: The opacity of these decisions is troubling.
A measure of relative impenetrability to electromagnetic radiation such as light.
Example: The opacity of a clean glass window is near zero.