Explore: *opacity

Opacity is the measure of impenetrability to electromagnetic or other kinds of radiation, especially visible light. In radiative transfer, it describes

Look up opacity or opaque in Wiktionary, the free dictionary. Opacity or opaque may refer to: Impediments to (especially, visible) light: Opacities, absorption

Kramers' opacity law describes the opacity of a medium in terms of the ambient density and temperature, assuming that the opacity is dominated by bound-free

used when the cornea of the eye loses its transparency. The term corneal opacity is used particularly for the loss of transparency of cornea due to scarring

and ⟨ ⟩, see IPA § Brackets and transcription delimiters. In phonology, opacity is when a phonological rule that exists in a given language appears to

Ground-glass opacity (GGO) is a finding seen on chest x-ray (radiograph) or computed tomography (CT) imaging of the lungs. It is typically defined as

Cataract surgery, also called lens replacement surgery, is the removal of the natural lens of the eye that has developed a cataract, an opaque or cloudy

nuclear weapons, which its commentators term "nuclear ambiguity" or "nuclear opacity". It is a general consensus that Israel is in possession of nuclear weapons

An opaque context or referentially opaque context is a linguistic context in which it is not always possible to substitute "co-referential" expressions

manifesting in the opacity of a layer of paint. The term hiding is generic and applied to designate either hiding power or opacity. If the coating of