Opacity is the measure of impenetrability to electromagnetic or other kinds of radiation, especially visible light. In radiative transfer, it describes the absorption and scattering of radiation in a …

Dec 16, 2025 · The opacity CSS property sets the opacity of an element. Opacity is the degree to which content behind an element is hidden, and is the opposite of transparency.

OPACITY definition: the state or quality of being opaque. See examples of opacity used in a sentence.

Dec 5, 2016 · The meaning of OPACITY is obscurity of sense : unintelligibility. How to use opacity in a sentence.

The opacity property sets the opacity level for an element. The opacity-level describes the transparency-level, where 1 is not transparent at all, 0.5 is 50% see-through, and 0 is …

OPACITY definition: 1. the state of being opaque, or the degree to which something is opaque 2. the state of being…. Learn more.

If you refer to something's opacity, you mean that it is difficult to understand.

The term "opacity" refers to the characteristic of a material that prevents light from passing through it, making it an essential concept across various fields. An object's opacity determines …

Dec 14, 2025 · opacity (countable and uncountable, plural opacities) (uncountable) The state or quality of being opaque, not allowing light to pass through.

OPACITY meaning: 1 : the quality of a material that does not allow light to pass through it the quality of being opaque; 2 : the quality of being difficult to understand or explain