An example of something with opacity is a darkened window.
An example of opacity is the Russian language.
We could not see the sandbar due to the opacity of the muddy water.
The opacity of these decisions is troubling.
Origin of opacity
- French opacité from Old French from Latin opācitās from opācus dark
From American Heritage Dictionary of the English Language, 5th Edition
- From French opacitÃ©.