opacity

English

Etymology

From French opacité.

Pronunciation

• (US) enPR: ōpăsʹĭti, IPA: /oʊˈpæsɪti/, X-SAMPA: /oU"p{sIti/

Noun

opacity (countable and uncountable; plural opacities)

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.

Coordinate terms

• transparency

Translations

the state of being opaque

• Czech: neprůhlednost (cs) f

• Finnish: läpikuultamattomuus (fi), läpinäkymättömyys (fi)
• Spanish: opacidad (es) f

a measure of relative opaqueness

• Finnish: läpikuultamattomuus (fi), läpinäkymättömyys (fi)

The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Help:How to check translations.

Translations to be checked

• French: opacité f
• Swedish: opak